20212022000220 has 48 divisors (see below), whose sum is σ = 56677753335840. Its totient is φ = 5381863796736.

The previous prime is 20212022000041. The next prime is 20212022000249. The reversal of 20212022000220 is 2200022021202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20212022000220.

It is a congruent number.

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, 250232305 + ... + 250313064.

It is an arithmetic number, because the mean of its divisors is an integer number (1180786527830).

Almost surely, 2^{20212022000220} is an apocalyptic number.

20212022000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20212022000220 is an abundant number, since it is smaller than the sum of its proper divisors (36465731335620).

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

20212022000220 is a wasteful number, since it uses less digits than its factorization.

20212022000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500546054 (or 500546052 counting only the distinct ones).

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

Adding to 20212022000220 its reverse (2200022021202), we get a palindrome (22412044021422).

The spelling of 20212022000220 in words is "twenty trillion, two hundred twelve billion, twenty-two million, two hundred twenty", and thus it is an aban number.