22450525121 has 4 divisors (see below), whose sum is σ = 22458754500. Its totient is φ = 22442295744.

The previous prime is 22450525117. The next prime is 22450525133. The reversal of 22450525121 is 12152505422.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22189379521 + 261145600 = 148961^2 + 16160^2 .

It is a cyclic number.

It is not a de Polignac number, because 22450525121 - 2² = 22450525117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22450525171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4110596 + ... + 4116053.

It is an arithmetic number, because the mean of its divisors is an integer number (5614688625).

Almost surely, 2^22450525121 is an apocalyptic number.

It is an amenable number.

22450525121 is a deficient number, since it is larger than the sum of its proper divisors (8229379).

22450525121 is an equidigital number, since it uses as much as digits as its factorization.

22450525121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8229378.

The product of its (nonzero) digits is 8000, while the sum is 29.

The spelling of 22450525121 in words is "twenty-two billion, four hundred fifty million, five hundred twenty-five thousand, one hundred twenty-one".