22252000912861 has 2 divisors, whose sum is σ = 22252000912862. Its totient is φ = 22252000912860.

The previous prime is 22252000912847. The next prime is 22252000912979. The reversal of 22252000912861 is 16821900025222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22056830460900 + 195170451961 = 4696470^2 + 441781^2 .

It is a cyclic number.

It is not a de Polignac number, because 22252000912861 - 2⁴³ = 13455907890653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22252000952861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11126000456430 + 11126000456431.

It is an arithmetic number, because the mean of its divisors is an integer number (11126000456431).

Almost surely, 2^{22252000912861} is an apocalyptic number.

It is an amenable number.

22252000912861 is a deficient number, since it is larger than the sum of its proper divisors (1).

22252000912861 is an equidigital number, since it uses as much as digits as its factorization.

22252000912861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The spelling of 22252000912861 in words is "twenty-two trillion, two hundred fifty-two billion, nine hundred twelve thousand, eight hundred sixty-one".