2222202031121 has 2 divisors, whose sum is σ = 2222202031122. Its totient is φ = 2222202031120.

The previous prime is 2222202031117. The next prime is 2222202031187. The reversal of 2222202031121 is 1211302022222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1214459100625 + 1007742930496 = 1102025^2 + 1003864^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222202031121 - 2² = 2222202031117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2222202031093 and 2222202031102.

It is not a weakly prime, because it can be changed into another prime (2222202231121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111101015560 + 1111101015561.

It is an arithmetic number, because the mean of its divisors is an integer number (1111101015561).

Almost surely, 2^{2222202031121} is an apocalyptic number.

It is an amenable number.

2222202031121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222202031121 is an equidigital number, since it uses as much as digits as its factorization.

2222202031121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2222202031121 its reverse (1211302022222), we get a palindrome (3433504053343).

The spelling of 2222202031121 in words is "two trillion, two hundred twenty-two billion, two hundred two million, thirty-one thousand, one hundred twenty-one".