22336994081 has 2 divisors, whose sum is σ = 22336994082. Its totient is φ = 22336994080.

The previous prime is 22336994077. The next prime is 22336994159. The reversal of 22336994081 is 18049963322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15950427025 + 6386567056 = 126295^2 + 79916^2 .

It is a cyclic number.

It is not a de Polignac number, because 22336994081 - 2² = 22336994077 is a prime.

It is a super-2 number, since 2×22336994081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22336994051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11168497040 + 11168497041.

It is an arithmetic number, because the mean of its divisors is an integer number (11168497041).

Almost surely, 2^22336994081 is an apocalyptic number.

It is an amenable number.

22336994081 is a deficient number, since it is larger than the sum of its proper divisors (1).

22336994081 is an equidigital number, since it uses as much as digits as its factorization.

22336994081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 22336994081 in words is "twenty-two billion, three hundred thirty-six million, nine hundred ninety-four thousand, eighty-one".