22012556612251 has 2 divisors, whose sum is σ = 22012556612252. Its totient is φ = 22012556612250.

The previous prime is 22012556612209. The next prime is 22012556612257. The reversal of 22012556612251 is 15221665521022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22012556612251 - 2³⁵ = 21978196873883 is a prime.

It is not a weakly prime, because it can be changed into another prime (22012556612257) 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, 11006278306125 + 11006278306126.

It is an arithmetic number, because the mean of its divisors is an integer number (11006278306126).

Almost surely, 2^{22012556612251} is an apocalyptic number.

22012556612251 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012556612251 is an equidigital number, since it uses as much as digits as its factorization.

22012556612251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 22012556612251 in words is "twenty-two trillion, twelve billion, five hundred fifty-six million, six hundred twelve thousand, two hundred fifty-one".