222121120957867 has 2 divisors, whose sum is σ = 222121120957868. Its totient is φ = 222121120957866.

The previous prime is 222121120957859. The next prime is 222121120957933. The reversal of 222121120957867 is 768759021121222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222121120957867 - 2³ = 222121120957859 is a prime.

It is not a weakly prime, because it can be changed into another prime (222121120957817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111060560478933 + 111060560478934.

It is an arithmetic number, because the mean of its divisors is an integer number (111060560478934).

Almost surely, 2^{222121120957867} is an apocalyptic number.

222121120957867 is a deficient number, since it is larger than the sum of its proper divisors (1).

222121120957867 is an equidigital number, since it uses as much as digits as its factorization.

222121120957867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 222121120957867 in words is "two hundred twenty-two trillion, one hundred twenty-one billion, one hundred twenty million, nine hundred fifty-seven thousand, eight hundred sixty-seven".