122996802681 has 9 divisors (see below), whose sum is σ = 177663568069. Its totient is φ = 81997167036.

The previous prime is 122996802671. The next prime is 122996802701. The reversal of 122996802681 is 186208699221.

It is a happy number.

The square root of 122996802681 is 350709.

It is a perfect power (a square), and thus also a powerful number.

122996802681 is a `hidden beast` number, since 12 + 299 + 6 + 80 + 268 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 122996802681 - 2¹³ = 122996794489 is a prime.

It is a super-2 number, since 2×122996802681² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122996802601) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 993676 + ... + 1110578.

Almost surely, 2^122996802681 is an apocalyptic number.

122996802681 is the 350709-th square number.

122996802681 is the 175355-th centered octagonal number.

It is an amenable number.

122996802681 is a deficient number, since it is larger than the sum of its proper divisors (54666765388).

122996802681 is an frugal number, since it uses more digits than its factorization.

122996802681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233812 (or 116906 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 122996802681 in words is "one hundred twenty-two billion, nine hundred ninety-six million, eight hundred two thousand, six hundred eighty-one".