22433212981 has 2 divisors, whose sum is σ = 22433212982. Its totient is φ = 22433212980.

The previous prime is 22433212969. The next prime is 22433213003. The reversal of 22433212981 is 18921233422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17953588081 + 4479624900 = 133991^2 + 66930^2 .

It is a cyclic number.

It is not a de Polignac number, because 22433212981 - 2¹⁵ = 22433180213 is a prime.

It is a super-2 number, since 2×22433212981² (a number of 22 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 22433212981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22433212931) 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, 11216606490 + 11216606491.

It is an arithmetic number, because the mean of its divisors is an integer number (11216606491).

Almost surely, 2^22433212981 is an apocalyptic number.

It is an amenable number.

22433212981 is a deficient number, since it is larger than the sum of its proper divisors (1).

22433212981 is an equidigital number, since it uses as much as digits as its factorization.

22433212981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 37.

The spelling of 22433212981 in words is "twenty-two billion, four hundred thirty-three million, two hundred twelve thousand, nine hundred eighty-one".