22695121201 has 3 divisors (see below), whose sum is σ = 22695271851. Its totient is φ = 22694970552.

The previous prime is 22695121171. The next prime is 22695121219. The reversal of 22695121201 is 10212159622.

The square root of 22695121201 is 150649.

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., 13409871601 + 9285249600 = 115801^2 + 96360^2 .

It is not a de Polignac number, because 22695121201 - 2¹⁵ = 22695088433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22695121301) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 75325 + ... + 225973.

It is an arithmetic number, because the mean of its divisors is an integer number (7565090617).

Almost surely, 2^22695121201 is an apocalyptic number.

22695121201 is the 150649-th square number.

22695121201 is the 75325-th centered octagonal number.

It is an amenable number.

22695121201 is a deficient number, since it is larger than the sum of its proper divisors (150650).

22695121201 is an frugal number, since it uses more digits than its factorization.

22695121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301298 (or 150649 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 22695121201 in words is "twenty-two billion, six hundred ninety-five million, one hundred twenty-one thousand, two hundred one".