122799681 has 12 divisors (see below), whose sum is σ = 177473920. Its totient is φ = 81821880.

The previous prime is 122799671. The next prime is 122799713. The reversal of 122799681 is 186997221.

It is not a de Polignac number, because 122799681 - 2⁶ = 122799617 is a prime.

It is a super-2 number, since 2×122799681² = 30159523307403522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122799671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27816 + ... + 31926.

Almost surely, 2^122799681 is an apocalyptic number.

It is an amenable number.

122799681 is a deficient number, since it is larger than the sum of its proper divisors (54674239).

122799681 is a wasteful number, since it uses less digits than its factorization.

122799681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7436 (or 7433 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 122799681 is about 11081.5017484094. The cubic root of 122799681 is about 497.0488571143.

The spelling of 122799681 in words is "one hundred twenty-two million, seven hundred ninety-nine thousand, six hundred eighty-one".