312232221127 has 2 divisors, whose sum is σ = 312232221128. Its totient is φ = 312232221126.

The previous prime is 312232221089. The next prime is 312232221139. The reversal of 312232221127 is 721122232213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312232221127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312232221095 and 312232221104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312232221157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156116110563 + 156116110564.

It is an arithmetic number, because the mean of its divisors is an integer number (156116110564).

Almost surely, 2^312232221127 is an apocalyptic number.

312232221127 is a deficient number, since it is larger than the sum of its proper divisors (1).

312232221127 is an equidigital number, since it uses as much as digits as its factorization.

312232221127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 28.

The spelling of 312232221127 in words is "three hundred twelve billion, two hundred thirty-two million, two hundred twenty-one thousand, one hundred twenty-seven".