22202202221 has 16 divisors (see below), whose sum is σ = 23463743040. Its totient is φ = 20950110720.

The previous prime is 22202202193. The next prime is 22202202229. The reversal of 22202202221 is 12220220222.

It is a cyclic number.

It is not a de Polignac number, because 22202202221 - 2⁶ = 22202202157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22202202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202202229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9207506 + ... + 9209916.

It is an arithmetic number, because the mean of its divisors is an integer number (1466483940).

Almost surely, 2^22202202221 is an apocalyptic number.

It is an amenable number.

22202202221 is a deficient number, since it is larger than the sum of its proper divisors (1261540819).

22202202221 is a wasteful number, since it uses less digits than its factorization.

22202202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156.

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 22202202221 its reverse (12220220222), we get a palindrome (34422422443).

The spelling of 22202202221 in words is "twenty-two billion, two hundred two million, two hundred two thousand, two hundred twenty-one".