220022212011021 has 64 divisors (see below), whose sum is σ = 374466772810240. Its totient is φ = 125071463301120.

The previous prime is 220022212011011. The next prime is 220022212011029. The reversal of 220022212011021 is 120110212220022.

It is a happy number.

220022212011021 is a `hidden beast` number, since 220 + 0 + 2 + 221 + 201 + 1 + 0 + 21 = 666.

It is not a de Polignac number, because 220022212011021 - 2¹⁸ = 220022211748877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220022212010985 and 220022212011003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022212011029) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1385791281 + ... + 1385950041.

It is an arithmetic number, because the mean of its divisors is an integer number (5851043325160).

Almost surely, 2^{220022212011021} is an apocalyptic number.

220022212011021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220022212011021 is a deficient number, since it is larger than the sum of its proper divisors (154444560799219).

220022212011021 is a wasteful number, since it uses less digits than its factorization.

220022212011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196963 (or 196957 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220022212011021 its reverse (120110212220022), we get a palindrome (340132424231043).

The spelling of 220022212011021 in words is "two hundred twenty trillion, twenty-two billion, two hundred twelve million, eleven thousand, twenty-one".