22111200120012 has 48 divisors (see below), whose sum is σ = 52458017472000. Its totient is φ = 7246887140160.

The previous prime is 22111200119999. The next prime is 22111200120019. The reversal of 22111200120012 is 21002100211122.

It is a junction number, because it is equal to n+sod(n) for n = 22111200119973 and 22111200120000.

It is not an unprimeable number, because it can be changed into a prime (22111200120019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3620212 + ... + 7571547.

It is an arithmetic number, because the mean of its divisors is an integer number (1092875364000).

Almost surely, 2^{22111200120012} is an apocalyptic number.

It is an amenable number.

22111200120012 is an abundant number, since it is smaller than the sum of its proper divisors (30346817351988).

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

22111200120012 is a wasteful number, since it uses less digits than its factorization.

22111200120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11194526 (or 11194524 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22111200120012 its reverse (21002100211122), we get a palindrome (43113300331134).

The spelling of 22111200120012 in words is "twenty-two trillion, one hundred eleven billion, two hundred million, one hundred twenty thousand, twelve".