222202020121 has 16 divisors (see below), whose sum is σ = 226060243200. Its totient is φ = 218372214528.

The previous prime is 222202020083. The next prime is 222202020149. The reversal of 222202020121 is 121020202222.

It is a cyclic number.

It is not a de Polignac number, because 222202020121 - 2²⁷ = 222067802393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222202020095 and 222202020104.

It is not an unprimeable number, because it can be changed into a prime (222202027121) 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, 16249075 + ... + 16262743.

It is an arithmetic number, because the mean of its divisors is an integer number (14128765200).

Almost surely, 2^222202020121 is an apocalyptic number.

It is an amenable number.

222202020121 is a deficient number, since it is larger than the sum of its proper divisors (3858223079).

222202020121 is a wasteful number, since it uses less digits than its factorization.

222202020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14688.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222202020121 its reverse (121020202222), we get a palindrome (343222222343).

The spelling of 222202020121 in words is "two hundred twenty-two billion, two hundred two million, twenty thousand, one hundred twenty-one".