22202320221 has 48 divisors (see below), whose sum is σ = 33572972160. Its totient is φ = 14120749440.

The previous prime is 22202320193. The next prime is 22202320277. The reversal of 22202320221 is 12202320222.

It is not a de Polignac number, because 22202320221 - 2¹⁸ = 22202058077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22202320194 and 22202320203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202321221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20349886 + ... + 20350976.

It is an arithmetic number, because the mean of its divisors is an integer number (699436920).

Almost surely, 2^22202320221 is an apocalyptic number.

It is an amenable number.

22202320221 is a deficient number, since it is larger than the sum of its proper divisors (11370651939).

22202320221 is a wasteful number, since it uses less digits than its factorization.

22202320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1983 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 22202320221 its reverse (12202320222), we get a palindrome (34404640443).

Subtracting from 22202320221 its reverse (12202320222), we obtain a palindrome (9999999999).

The spelling of 22202320221 in words is "twenty-two billion, two hundred two million, three hundred twenty thousand, two hundred twenty-one".