222000022120121 has 24 divisors (see below), whose sum is σ = 258542318773440. Its totient is φ = 190066688536032.

The previous prime is 222000022120067. The next prime is 222000022120207. The reversal of 222000022120121 is 121021220000222.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-222000022120121 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 222000022120121.

It is not an unprimeable number, because it can be changed into a prime (222000022120321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 211164515 + ... + 212213223.

It is an arithmetic number, because the mean of its divisors is an integer number (10772596615560).

Almost surely, 2^{222000022120121} is an apocalyptic number.

It is an amenable number.

222000022120121 is a deficient number, since it is larger than the sum of its proper divisors (36542296653319).

222000022120121 is a wasteful number, since it uses less digits than its factorization.

222000022120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053693 (or 1053686 counting only the distinct ones).

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

Adding to 222000022120121 its reverse (121021220000222), we get a palindrome (343021242120343).

The spelling of 222000022120121 in words is "two hundred twenty-two trillion, twenty-two million, one hundred twenty thousand, one hundred twenty-one".