222815961031 has 2 divisors, whose sum is σ = 222815961032. Its totient is φ = 222815961030.

The previous prime is 222815961023. The next prime is 222815961073. The reversal of 222815961031 is 130169518222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222815961031 - 2³ = 222815961023 is a prime.

It is a super-2 number, since 2×222815961031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222815961931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111407980515 + 111407980516.

It is an arithmetic number, because the mean of its divisors is an integer number (111407980516).

Almost surely, 2^222815961031 is an apocalyptic number.

222815961031 is a deficient number, since it is larger than the sum of its proper divisors (1).

222815961031 is an equidigital number, since it uses as much as digits as its factorization.

222815961031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 222815961031 in words is "two hundred twenty-two billion, eight hundred fifteen million, nine hundred sixty-one thousand, thirty-one".