22212022020 has 48 divisors (see below), whose sum is σ = 62668444608. Its totient is φ = 5877988480.

The previous prime is 22212021989. The next prime is 22212022033. The reversal of 22212022020 is 2022021222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1405119 + ... + 1420838.

It is an arithmetic number, because the mean of its divisors is an integer number (1305592596).

Almost surely, 2^22212022020 is an apocalyptic number.

22212022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22212022020 is an abundant number, since it is smaller than the sum of its proper divisors (40456422588).

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

22212022020 is a wasteful number, since it uses less digits than its factorization.

22212022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2826100 (or 2826098 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22212022020 its reverse (2022021222), we get a palindrome (24234043242).

It can be divided in two parts, 2221202 and 2020, that added together give a palindrome (2223222).

The spelling of 22212022020 in words is "twenty-two billion, two hundred twelve million, twenty-two thousand, twenty".