22021213112 has 16 divisors (see below), whose sum is σ = 41292051000. Its totient is φ = 11009999520.

The previous prime is 22021213087. The next prime is 22021213117. The reversal of 22021213112 is 21131212022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021213117) by changing a digit.

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, 103139 + ... + 233837.

Almost surely, 2^22021213112 is an apocalyptic number.

It is an amenable number.

22021213112 is a deficient number, since it is larger than the sum of its proper divisors (19270837888).

22021213112 is a wasteful number, since it uses less digits than its factorization.

22021213112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151766 (or 151762 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 22021213112 its reverse (21131212022), we get a palindrome (43152425134).

The spelling of 22021213112 in words is "twenty-two billion, twenty-one million, two hundred thirteen thousand, one hundred twelve".