22599921481 has 2 divisors, whose sum is σ = 22599921482. Its totient is φ = 22599921480.

The previous prime is 22599921451. The next prime is 22599921511. The reversal of 22599921481 is 18412999522.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (22599921451) and next prime (22599921511).

It can be written as a sum of positive squares in only one way, i.e., 22482003600 + 117917881 = 149940^2 + 10859^2 .

It is a cyclic number.

It is not a de Polignac number, because 22599921481 - 2⁹ = 22599920969 is a prime.

It is a super-2 number, since 2×22599921481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22599921401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11299960740 + 11299960741.

It is an arithmetic number, because the mean of its divisors is an integer number (11299960741).

Almost surely, 2^22599921481 is an apocalyptic number.

It is an amenable number.

22599921481 is a deficient number, since it is larger than the sum of its proper divisors (1).

22599921481 is an equidigital number, since it uses as much as digits as its factorization.

22599921481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 52.

The spelling of 22599921481 in words is "twenty-two billion, five hundred ninety-nine million, nine hundred twenty-one thousand, four hundred eighty-one".