31225221360089 has 2 divisors, whose sum is σ = 31225221360090. Its totient is φ = 31225221360088.

The previous prime is 31225221360001. The next prime is 31225221360107. The reversal of 31225221360089 is 98006312252213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30235514734489 + 989706625600 = 5498683^2 + 994840^2 .

It is a cyclic number.

It is not a de Polignac number, because 31225221360089 - 2²⁰ = 31225220311513 is a prime.

It is not a weakly prime, because it can be changed into another prime (31225224360089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15612610680044 + 15612610680045.

It is an arithmetic number, because the mean of its divisors is an integer number (15612610680045).

Almost surely, 2^{31225221360089} is an apocalyptic number.

It is an amenable number.

31225221360089 is a deficient number, since it is larger than the sum of its proper divisors (1).

31225221360089 is an equidigital number, since it uses as much as digits as its factorization.

31225221360089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 31225221360089 in words is "thirty-one trillion, two hundred twenty-five billion, two hundred twenty-one million, three hundred sixty thousand, eighty-nine".