22021122020 has 48 divisors (see below), whose sum is σ = 48095523840. Its totient is φ = 8461874304.

The previous prime is 22021121987. The next prime is 22021122043. The reversal of 22021122020 is 2022112022.

It is a junction number, because it is equal to n+sod(n) for n = 22021121986 and 22021122004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129884 + ... + 246803.

It is an arithmetic number, because the mean of its divisors is an integer number (1001990080).

Almost surely, 2^22021122020 is an apocalyptic number.

22021122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22021122020 is an abundant number, since it is smaller than the sum of its proper divisors (26074401820).

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

22021122020 is a wasteful number, since it uses less digits than its factorization.

22021122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376812 (or 376810 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22021122020 its reverse (2022112022), we get a palindrome (24043234042).

The spelling of 22021122020 in words is "twenty-two billion, twenty-one million, one hundred twenty-two thousand, twenty".