22130013281 has 2 divisors, whose sum is σ = 22130013282. Its totient is φ = 22130013280.

The previous prime is 22130013263. The next prime is 22130013319. The reversal of 22130013281 is 18231003122.

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., 11642410000 + 10487603281 = 107900^2 + 102409^2 .

It is a cyclic number.

It is not a de Polignac number, because 22130013281 - 2²² = 22125818977 is a prime.

It is a super-2 number, since 2×22130013281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22130013181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11065006640 + 11065006641.

It is an arithmetic number, because the mean of its divisors is an integer number (11065006641).

Almost surely, 2^22130013281 is an apocalyptic number.

It is an amenable number.

22130013281 is a deficient number, since it is larger than the sum of its proper divisors (1).

22130013281 is an equidigital number, since it uses as much as digits as its factorization.

22130013281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 22130013281 in words is "twenty-two billion, one hundred thirty million, thirteen thousand, two hundred eighty-one".