2022222121220 has 48 divisors (see below), whose sum is σ = 4853437481088. Its totient is φ = 693318385920.

The previous prime is 2022222121217. The next prime is 2022222121223. The reversal of 2022222121220 is 221212222202.

It is an interprime number because it is at equal distance from previous prime (2022222121217) and next prime (2022222121223).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2022222121192 and 2022222121201.

It is not an unprimeable number, because it can be changed into a prime (2022222121223) 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, 7842059 + ... + 8095821.

It is an arithmetic number, because the mean of its divisors is an integer number (101113280856).

Almost surely, 2^{2022222121220} is an apocalyptic number.

2022222121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2022222121220 is an abundant number, since it is smaller than the sum of its proper divisors (2831215359868).

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

2022222121220 is a wasteful number, since it uses less digits than its factorization.

2022222121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310700 (or 310698 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 2022222121220 its reverse (221212222202), we get a palindrome (2243434343422).

The spelling of 2022222121220 in words is "two trillion, twenty-two billion, two hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty".