22002110221 has 32 divisors (see below), whose sum is σ = 28121038848. Its totient is φ = 16745469120.

The previous prime is 22002110213. The next prime is 22002110231. The reversal of 22002110221 is 12201120022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22002110221 - 2³ = 22002110213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002110231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 447756 + ... + 494458.

It is an arithmetic number, because the mean of its divisors is an integer number (878782464).

Almost surely, 2^22002110221 is an apocalyptic number.

It is an amenable number.

22002110221 is a deficient number, since it is larger than the sum of its proper divisors (6118928627).

22002110221 is a wasteful number, since it uses less digits than its factorization.

22002110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46921.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22002110221 its reverse (12201120022), we get a palindrome (34203230243).

The spelling of 22002110221 in words is "twenty-two billion, two million, one hundred ten thousand, two hundred twenty-one".