22512608942881 has 2 divisors, whose sum is σ = 22512608942882. Its totient is φ = 22512608942880.

The previous prime is 22512608942867. The next prime is 22512608942897. The reversal of 22512608942881 is 18824980621522.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20414989707025 + 2097619235856 = 4518295^2 + 1448316^2 .

It is a cyclic number.

It is not a de Polignac number, because 22512608942881 - 2¹³ = 22512608934689 is a prime.

It is a super-2 number, since 2×22512608942881² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22512608942801) 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, 11256304471440 + 11256304471441.

It is an arithmetic number, because the mean of its divisors is an integer number (11256304471441).

Almost surely, 2^{22512608942881} is an apocalyptic number.

It is an amenable number.

22512608942881 is a deficient number, since it is larger than the sum of its proper divisors (1).

22512608942881 is an equidigital number, since it uses as much as digits as its factorization.

22512608942881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8847360, while the sum is 58.

The spelling of 22512608942881 in words is "twenty-two trillion, five hundred twelve billion, six hundred eight million, nine hundred forty-two thousand, eight hundred eighty-one".