222102022121 has 12 divisors (see below), whose sum is σ = 258429927888. Its totient is φ = 190324271592.

The previous prime is 222102022099. The next prime is 222102022141. The reversal of 222102022121 is 121220201222.

It is a happy number.

It is not a de Polignac number, because 222102022121 - 2²⁶ = 222034913257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222102022121.

It is not an unprimeable number, because it can be changed into a prime (222102022141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388631 + ... + 771516.

It is an arithmetic number, because the mean of its divisors is an integer number (21535827324).

Almost surely, 2^222102022121 is an apocalyptic number.

It is an amenable number.

222102022121 is a deficient number, since it is larger than the sum of its proper divisors (36327905767).

222102022121 is a wasteful number, since it uses less digits than its factorization.

222102022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164068 (or 1164061 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222102022121 its reverse (121220201222), we get a palindrome (343322223343).

The spelling of 222102022121 in words is "two hundred twenty-two billion, one hundred two million, twenty-two thousand, one hundred twenty-one".