220121022212022 has 16 divisors (see below), whose sum is σ = 444137991721200. Its totient is φ = 72724349521152.

The previous prime is 220121022211967. The next prime is 220121022212041. The reversal of 220121022212022 is 220212220121022.

It is a super-4 number, since 4×220121022212022⁴ (a number of 58 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 220121022212022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162331136647 + ... + 162331138002.

It is an arithmetic number, because the mean of its divisors is an integer number (27758624482575).

Almost surely, 2^{220121022212022} is an apocalyptic number.

220121022212022 is an abundant number, since it is smaller than the sum of its proper divisors (224016969509178).

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

220121022212022 is a wasteful number, since it uses less digits than its factorization.

220121022212022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324662274767.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 220121022212022 its reverse (220212220121022), we get a palindrome (440333242333044).

The spelling of 220121022212022 in words is "two hundred twenty trillion, one hundred twenty-one billion, twenty-two million, two hundred twelve thousand, twenty-two".