2021022000220 has 24 divisors (see below), whose sum is σ = 4252790103408. Its totient is φ = 806762342400.

The previous prime is 2021022000203. The next prime is 2021022000223. The reversal of 2021022000220 is 220002201202.

It is a self number, because there is not a number n which added to its sum of digits gives 2021022000220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021022000223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102893541 + ... + 102913180.

It is an arithmetic number, because the mean of its divisors is an integer number (177199587642).

Almost surely, 2^{2021022000220} is an apocalyptic number.

2021022000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021022000220 is an abundant number, since it is smaller than the sum of its proper divisors (2231768103188).

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

2021022000220 is a wasteful number, since it uses less digits than its factorization.

2021022000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205807221 (or 205807219 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 2021022000220 its reverse (220002201202), we get a palindrome (2241024201422).

The spelling of 2021022000220 in words is "two trillion, twenty-one billion, twenty-two million, two hundred twenty", and thus it is an aban number.