22400709121 has 6 divisors (see below), whose sum is σ = 26057967810. Its totient is φ = 19200607776.

The previous prime is 22400709113. The next prime is 22400709131. The reversal of 22400709121 is 12190700422.

It can be written as a sum of positive squares in only one way, i.e., 15268062096 + 7132647025 = 123564^2 + 84455^2 .

It is not a de Polignac number, because 22400709121 - 2³ = 22400709113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22400709121.

It is not an unprimeable number, because it can be changed into a prime (22400709101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 228578616 + ... + 228578713.

It is an arithmetic number, because the mean of its divisors is an integer number (4342994635).

Almost surely, 2^22400709121 is an apocalyptic number.

It is an amenable number.

22400709121 is a deficient number, since it is larger than the sum of its proper divisors (3657258689).

22400709121 is an equidigital number, since it uses as much as digits as its factorization.

22400709121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457157343 (or 457157336 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The spelling of 22400709121 in words is "twenty-two billion, four hundred million, seven hundred nine thousand, one hundred twenty-one".