20021022212022 has 64 divisors (see below), whose sum is σ = 47951616384000. Its totient is φ = 6155421233184.

The previous prime is 20021022212011. The next prime is 20021022212029. The reversal of 20021022212022 is 22021222012002.

20021022212022 is a `hidden beast` number, since 200 + 210 + 22 + 212 + 0 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20021022211986 and 20021022212004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021022212029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10442622 + ... + 12210257.

It is an arithmetic number, because the mean of its divisors is an integer number (749244006000).

Almost surely, 2^{20021022212022} is an apocalyptic number.

20021022212022 is an abundant number, since it is smaller than the sum of its proper divisors (27930594171978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021022212022 is a wasteful number, since it uses less digits than its factorization.

20021022212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22654162 (or 22654156 counting only the distinct ones).

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

Adding to 20021022212022 its reverse (22021222012002), we get a palindrome (42042244224024).

It can be divided in two parts, 2002102 and 2212022, that added together give a palindrome (4214124).

The spelling of 20021022212022 in words is "twenty trillion, twenty-one billion, twenty-two million, two hundred twelve thousand, twenty-two".