22302007181 has 2 divisors, whose sum is σ = 22302007182. Its totient is φ = 22302007180.

The previous prime is 22302007163. The next prime is 22302007213. The reversal of 22302007181 is 18170020322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17980128100 + 4321879081 = 134090^2 + 65741^2 .

It is a cyclic number.

It is not a de Polignac number, because 22302007181 - 2²² = 22297812877 is a prime.

It is a super-2 number, since 2×22302007181² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22302007181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22302007121) 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, 11151003590 + 11151003591.

It is an arithmetic number, because the mean of its divisors is an integer number (11151003591).

Almost surely, 2^22302007181 is an apocalyptic number.

It is an amenable number.

22302007181 is a deficient number, since it is larger than the sum of its proper divisors (1).

22302007181 is an equidigital number, since it uses as much as digits as its factorization.

22302007181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

The spelling of 22302007181 in words is "twenty-two billion, three hundred two million, seven thousand, one hundred eighty-one".