22100130029981 has 2 divisors, whose sum is σ = 22100130029982. Its totient is φ = 22100130029980.

The previous prime is 22100130029959. The next prime is 22100130030023. The reversal of 22100130029981 is 18992003100122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21539892749881 + 560237280100 = 4641109^2 + 748490^2 .

It is a cyclic number.

It is not a de Polignac number, because 22100130029981 - 2¹⁴ = 22100130013597 is a prime.

It is a super-2 number, since 2×22100130029981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22100130029921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11050065014990 + 11050065014991.

It is an arithmetic number, because the mean of its divisors is an integer number (11050065014991).

Almost surely, 2^{22100130029981} is an apocalyptic number.

It is an amenable number.

22100130029981 is a deficient number, since it is larger than the sum of its proper divisors (1).

22100130029981 is an equidigital number, since it uses as much as digits as its factorization.

22100130029981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The spelling of 22100130029981 in words is "twenty-two trillion, one hundred billion, one hundred thirty million, twenty-nine thousand, nine hundred eighty-one".