22357952221 has 8 divisors (see below), whose sum is σ = 24576681888. Its totient is φ = 20170254000.

The previous prime is 22357952179. The next prime is 22357952231. The reversal of 22357952221 is 12225975322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22357952221 - 2⁹ = 22357951709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22357952231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7756350 + ... + 7759231.

It is an arithmetic number, because the mean of its divisors is an integer number (3072085236).

Almost surely, 2^22357952221 is an apocalyptic number.

It is an amenable number.

22357952221 is a deficient number, since it is larger than the sum of its proper divisors (2218729667).

22357952221 is a wasteful number, since it uses less digits than its factorization.

22357952221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15515723.

The product of its digits is 151200, while the sum is 40.

It can be divided in two parts, 2235795 and 2221, that added together give a square (2238016 = 1496²).

The spelling of 22357952221 in words is "twenty-two billion, three hundred fifty-seven million, nine hundred fifty-two thousand, two hundred twenty-one".