22402515221 has 8 divisors (see below), whose sum is σ = 23796586944. Its totient is φ = 21016918720.

The previous prime is 22402515209. The next prime is 22402515227. The reversal of 22402515221 is 12251520422.

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 22402515221 - 2³⁰ = 21328773397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22402515227) 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, 2113355 + ... + 2123928.

It is an arithmetic number, because the mean of its divisors is an integer number (2974573368).

Almost surely, 2^22402515221 is an apocalyptic number.

It is an amenable number.

22402515221 is a deficient number, since it is larger than the sum of its proper divisors (1394071723).

22402515221 is a wasteful number, since it uses less digits than its factorization.

22402515221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237611.

The product of its (nonzero) digits is 3200, while the sum is 26.

The spelling of 22402515221 in words is "twenty-two billion, four hundred two million, five hundred fifteen thousand, two hundred twenty-one".