22202222200221 has 16 divisors (see below), whose sum is σ = 34212091996800. Its totient is φ = 12544433730048.

The previous prime is 22202222200211. The next prime is 22202222200229. The reversal of 22202222200221 is 12200222220222.

It is not a de Polignac number, because 22202222200221 - 2¹⁵ = 22202222167453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22202222200229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5939597436 + ... + 5939601173.

It is an arithmetic number, because the mean of its divisors is an integer number (2138255749800).

Almost surely, 2^{22202222200221} is an apocalyptic number.

22202222200221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

22202222200221 is a deficient number, since it is larger than the sum of its proper divisors (12009869796579).

22202222200221 is a wasteful number, since it uses less digits than its factorization.

22202222200221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11879198708.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22202222200221 its reverse (12200222220222), we get a palindrome (34402444420443).

The spelling of 22202222200221 in words is "twenty-two trillion, two hundred two billion, two hundred twenty-two million, two hundred thousand, two hundred twenty-one".