22237396481 has 2 divisors, whose sum is σ = 22237396482. Its totient is φ = 22237396480.

The previous prime is 22237396427. The next prime is 22237396483. The reversal of 22237396481 is 18469373222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18187219600 + 4050176881 = 134860^2 + 63641^2 .

It is a cyclic number.

It is not a de Polignac number, because 22237396481 - 2²² = 22233202177 is a prime.

It is a super-2 number, since 2×22237396481² (a number of 21 digits) contains 22 as substring.

Together with 22237396483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22237396483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11118698240 + 11118698241.

It is an arithmetic number, because the mean of its divisors is an integer number (11118698241).

Almost surely, 2^22237396481 is an apocalyptic number.

It is an amenable number.

22237396481 is a deficient number, since it is larger than the sum of its proper divisors (1).

22237396481 is an equidigital number, since it uses as much as digits as its factorization.

22237396481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The spelling of 22237396481 in words is "twenty-two billion, two hundred thirty-seven million, three hundred ninety-six thousand, four hundred eighty-one".