diff --git a/mypy/checkstrformat.py b/mypy/checkstrformat.py
index 289961523b1d..09758e7d990a 100644
--- a/mypy/checkstrformat.py
+++ b/mypy/checkstrformat.py
@@ -1073,6 +1073,15 @@ def conversion_type(
                 return UnionType(
                     [self.named_type("builtins.int"), self.named_type("builtins.str")]
                 )
+        elif p.startswith(("<", ">", "=", "^")):
+            # THIS CODE IS WRONG
+            return UnionType(
+                [
+                    self.named_type("builtins.int"),
+                    self.named_type("builtins.float"),
+                    self.named_type("builtins.str"),
+                ]
+            )
         else:
             self.msg.unsupported_placeholder(p, context)
             return None
diff --git a/test-data/unit/check-errorcodes.test b/test-data/unit/check-errorcodes.test
index 6ec246fb3a13..aeb15bd66ef4 100644
--- a/test-data/unit/check-errorcodes.test
+++ b/test-data/unit/check-errorcodes.test
@@ -645,6 +645,8 @@ def g() -> int:
 
 '{}'.format(b'abc')  # E: If x = b'abc' then f"{x}" or "{}".format(x) produces "b'abc'", not "abc". If this is desired behavior, use f"{x!r}" or "{!r}".format(x). Otherwise, decode the bytes  [str-bytes-safe]
 '%s' % b'abc'  # E: If x = b'abc' then "%s" % x produces "b'abc'", not "abc". If this is desired behavior use "%r" % x. Otherwise, decode the bytes  [str-bytes-safe]
+'{:>2}'.format(None)  # E: alignment format specs are not supported on NoneType [str-format]
+
 [builtins fixtures/primitives.pyi]
 [typing fixtures/typing-medium.pyi]