22111220120012 has 6 divisors (see below), whose sum is σ = 38694635210028. Its totient is φ = 11055610060004.

The previous prime is 22111220119979. The next prime is 22111220120089. The reversal of 22111220120012 is 21002102211122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2763902514998 + ... + 2763902515005.

It is an arithmetic number, because the mean of its divisors is an integer number (6449105868338).

Almost surely, 2^{22111220120012} is an apocalyptic number.

It is an amenable number.

22111220120012 is a deficient number, since it is larger than the sum of its proper divisors (16583415090016).

22111220120012 is a wasteful number, since it uses less digits than its factorization.

22111220120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527805030007 (or 5527805030005 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22111220120012 its reverse (21002102211122), we get a palindrome (43113322331134).

The spelling of 22111220120012 in words is "twenty-two trillion, one hundred eleven billion, two hundred twenty million, one hundred twenty thousand, twelve".