22012250 has 48 divisors (see below), whose sum is σ = 44706168. Its totient is φ = 8112000.

The previous prime is 22012231. The next prime is 22012261. The reversal of 22012250 is 5221022.

It can be written as a sum of positive squares in 12 ways, for example, as 9431041 + 12581209 = 3071^2 + 3547^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41990 + ... + 42510.

Almost surely, 2^22012250 is an apocalyptic number.

22012250 is an abundant number, since it is smaller than the sum of its proper divisors (22693918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22012250 is a wasteful number, since it uses less digits than its factorization.

22012250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 22012250 is about 4691.7214324808. The cubic root of 22012250 is about 280.2559309638.

Adding to 22012250 its reverse (5221022), we get a palindrome (27233272).

The spelling of 22012250 in words is "twenty-two million, twelve thousand, two hundred fifty".