22131412 has 24 divisors (see below), whose sum is σ = 39877376. Its totient is φ = 10741248.

The previous prime is 22131397. The next prime is 22131443. The reversal of 22131412 is 21413122.

It is a super-2 number, since 2×22131412² = 979598794227488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38068 + ... + 38644.

Almost surely, 2^22131412 is an apocalyptic number.

It is an amenable number.

22131412 is a deficient number, since it is larger than the sum of its proper divisors (17745964).

22131412 is a wasteful number, since it uses less digits than its factorization.

22131412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 845 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 22131412 is about 4704.4034690915. The cubic root of 22131412 is about 280.7607373886.

Adding to 22131412 its reverse (21413122), we get a palindrome (43544534).

The spelling of 22131412 in words is "twenty-two million, one hundred thirty-one thousand, four hundred twelve".