112222211022121 has 16 divisors (see below), whose sum is σ = 125077845634560. Its totient is φ = 100061542529280.

The previous prime is 112222211022107. The next prime is 112222211022157. The reversal of 112222211022121 is 121220112222211.

It is a cyclic number.

It is not a de Polignac number, because 112222211022121 - 2²⁵ = 112222177467689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112222211022092 and 112222211022101.

It is not an unprimeable number, because it can be changed into a prime (112222211022161) 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, 127229800 + ... + 128108806.

It is an arithmetic number, because the mean of its divisors is an integer number (7817365352160).

Almost surely, 2^{112222211022121} is an apocalyptic number.

It is an amenable number.

112222211022121 is a deficient number, since it is larger than the sum of its proper divisors (12855634612439).

112222211022121 is a wasteful number, since it uses less digits than its factorization.

112222211022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1274304.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 112222211022121 its reverse (121220112222211), we get a palindrome (233442323244332).

The spelling of 112222211022121 in words is "one hundred twelve trillion, two hundred twenty-two billion, two hundred eleven million, twenty-two thousand, one hundred twenty-one".