22126512 has 20 divisors (see below), whose sum is σ = 57160280. Its totient is φ = 7375488.

The previous prime is 22126501. The next prime is 22126541. The reversal of 22126512 is 21562122.

It is a happy number.

It is a super-2 number, since 2×22126512² = 979165066572288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230437 + ... + 230532.

It is an arithmetic number, because the mean of its divisors is an integer number (2858014).

Almost surely, 2^22126512 is an apocalyptic number.

It is an amenable number.

22126512 is an abundant number, since it is smaller than the sum of its proper divisors (35033768).

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

22126512 is a wasteful number, since it uses less digits than its factorization.

22126512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460980 (or 460974 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 22126512 is about 4703.8826515975. The cubic root of 22126512 is about 280.7400152711.

Adding to 22126512 its reverse (21562122), we get a palindrome (43688634).

The spelling of 22126512 in words is "twenty-two million, one hundred twenty-six thousand, five hundred twelve".