22126712 has 8 divisors (see below), whose sum is σ = 41487600. Its totient is φ = 11063352.

The previous prime is 22126693. The next prime is 22126723. The reversal of 22126712 is 21762122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382912 + ... + 1382927.

It is an arithmetic number, because the mean of its divisors is an integer number (5185950).

Almost surely, 2^22126712 is an apocalyptic number.

It is an amenable number.

22126712 is a deficient number, since it is larger than the sum of its proper divisors (19360888).

22126712 is a wasteful number, since it uses less digits than its factorization.

22126712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2765845 (or 2765841 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 22126712 is about 4703.9039105832. The cubic root of 22126712 is about 280.7408611317.

Adding to 22126712 its reverse (21762122), we get a palindrome (43888834).

The spelling of 22126712 in words is "twenty-two million, one hundred twenty-six thousand, seven hundred twelve".