222321430957 has 2 divisors, whose sum is σ = 222321430958. Its totient is φ = 222321430956.

The previous prime is 222321430939. The next prime is 222321431053. The reversal of 222321430957 is 759034123222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178078936036 + 44242494921 = 421994^2 + 210339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222321430957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222321431957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111160715478 + 111160715479.

It is an arithmetic number, because the mean of its divisors is an integer number (111160715479).

Almost surely, 2^222321430957 is an apocalyptic number.

It is an amenable number.

222321430957 is a deficient number, since it is larger than the sum of its proper divisors (1).

222321430957 is an equidigital number, since it uses as much as digits as its factorization.

222321430957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 222321430957 in words is "two hundred twenty-two billion, three hundred twenty-one million, four hundred thirty thousand, nine hundred fifty-seven".