22797678121 has 3 divisors (see below), whose sum is σ = 22797829111. Its totient is φ = 22797527132.

The previous prime is 22797678119. The next prime is 22797678133. The reversal of 22797678121 is 12187679722.

The square root of 22797678121 is 150989.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 10213325721 + 12584352400 = 101061^2 + 112180^2 .

It is not a de Polignac number, because 22797678121 - 2¹ = 22797678119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22797678221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 75495 + ... + 226483.

Almost surely, 2^22797678121 is an apocalyptic number.

22797678121 is the 150989-th square number.

22797678121 is the 75495-th centered octagonal number.

It is an amenable number.

22797678121 is a deficient number, since it is larger than the sum of its proper divisors (150990).

22797678121 is an frugal number, since it uses more digits than its factorization.

22797678121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301978 (or 150989 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 52.

The spelling of 22797678121 in words is "twenty-two billion, seven hundred ninety-seven million, six hundred seventy-eight thousand, one hundred twenty-one".