22812210921 has 8 divisors (see below), whose sum is σ = 30419686080. Its totient is φ = 15206438192.

The previous prime is 22812210913. The next prime is 22812210961. The reversal of 22812210921 is 12901221822.

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 22812210921 - 2³ = 22812210913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22812210961) 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, 394005 + ... + 448178.

It is an arithmetic number, because the mean of its divisors is an integer number (3802460760).

Almost surely, 2^22812210921 is an apocalyptic number.

It is an amenable number.

22812210921 is a deficient number, since it is larger than the sum of its proper divisors (7607475159).

22812210921 is an equidigital number, since it uses as much as digits as its factorization.

22812210921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851215.

The product of its (nonzero) digits is 2304, while the sum is 30.

The spelling of 22812210921 in words is "twenty-two billion, eight hundred twelve million, two hundred ten thousand, nine hundred twenty-one".