22121210100112 has 80 divisors (see below), whose sum is σ = 43508680087680. Its totient is φ = 10893605538816.

The previous prime is 22121210100107. The next prime is 22121210100113. The reversal of 22121210100112 is 21100101212122.

It is a super-2 number, since 2×22121210100112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (22121210100113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3682569013 + ... + 3682575019.

It is an arithmetic number, because the mean of its divisors is an integer number (543858501096).

Almost surely, 2^{22121210100112} is an apocalyptic number.

It is an amenable number.

22121210100112 is a deficient number, since it is larger than the sum of its proper divisors (21387469987568).

22121210100112 is a wasteful number, since it uses less digits than its factorization.

22121210100112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10040 (or 10034 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 22121210100112 its reverse (21100101212122), we get a palindrome (43221311312234).

The spelling of 22121210100112 in words is "twenty-two trillion, one hundred twenty-one billion, two hundred ten million, one hundred thousand, one hundred twelve".