22112000000121 has 16 divisors (see below), whose sum is σ = 29983082051520. Its totient is φ = 14491137460800.

The previous prime is 22112000000107. The next prime is 22112000000147. The reversal of 22112000000121 is 12100000021122.

It is not a de Polignac number, because 22112000000121 - 2⁵ = 22112000000089 is a prime.

It is a super-2 number, since 2×22112000000121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22112000000097 and 22112000000106.

It is not an unprimeable number, because it can be changed into a prime (22112000000921) 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, 6137491 + ... + 9049463.

It is an arithmetic number, because the mean of its divisors is an integer number (1873942628220).

Almost surely, 2^{22112000000121} is an apocalyptic number.

It is an amenable number.

22112000000121 is a deficient number, since it is larger than the sum of its proper divisors (7871082051399).

22112000000121 is a wasteful number, since it uses less digits than its factorization.

22112000000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954936.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22112000000121 its reverse (12100000021122), we get a palindrome (34212000021243).

The spelling of 22112000000121 in words is "twenty-two trillion, one hundred twelve billion, one hundred twenty-one", and thus it is an aban number.