22321220022021 has 16 divisors (see below), whose sum is σ = 30474237809664. Its totient is φ = 14524973251824.

The previous prime is 22321220022011. The next prime is 22321220022071. The reversal of 22321220022021 is 12022002212322.

It is not a de Polignac number, because 22321220022021 - 2¹⁵ = 22321219989253 is a prime.

It is a super-3 number, since 3×22321220022021³ (a number of 41 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22321220022001) 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, 57989991 + ... + 58373636.

It is an arithmetic number, because the mean of its divisors is an integer number (1904639863104).

Almost surely, 2^{22321220022021} is an apocalyptic number.

It is an amenable number.

22321220022021 is a deficient number, since it is larger than the sum of its proper divisors (8153017787643).

22321220022021 is a wasteful number, since it uses less digits than its factorization.

22321220022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116365160.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22321220022021 its reverse (12022002212322), we get a palindrome (34343222234343).

The spelling of 22321220022021 in words is "twenty-two trillion, three hundred twenty-one billion, two hundred twenty million, twenty-two thousand, twenty-one".