220022002122021 has 72 divisors (see below), whose sum is σ = 349946593974432. Its totient is φ = 133110642772800.

The previous prime is 220022002122001. The next prime is 220022002122023. The reversal of 220022002122021 is 120221200220022.

220022002122021 is a `hidden beast` number, since 2 + 200 + 2 + 200 + 21 + 220 + 21 = 666.

It is not a de Polignac number, because 220022002122021 - 2¹¹ = 220022002119973 is a prime.

It is a super-2 number, since 2×220022002122021² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220022002121985 and 220022002122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022002122023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1868794726 + ... + 1868912456.

It is an arithmetic number, because the mean of its divisors is an integer number (4860369360756).

Almost surely, 2^{220022002122021} is an apocalyptic number.

It is an amenable number.

220022002122021 is a deficient number, since it is larger than the sum of its proper divisors (129924591852411).

220022002122021 is a wasteful number, since it uses less digits than its factorization.

220022002122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120783 (or 120769 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 220022002122021 its reverse (120221200220022), we get a palindrome (340243202342043).

The spelling of 220022002122021 in words is "two hundred twenty trillion, twenty-two billion, two million, one hundred twenty-two thousand, twenty-one".