2020001222220 has 24 divisors (see below), whose sum is σ = 5656003422384. Its totient is φ = 538666992576.

The previous prime is 2020001222179. The next prime is 2020001222221. The reversal of 2020001222220 is 222221000202.

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 2020001222220.

It is not an unprimeable number, because it can be changed into a prime (2020001222221) 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, 16833343459 + ... + 16833343578.

It is an arithmetic number, because the mean of its divisors is an integer number (235666809266).

Almost surely, 2^{2020001222220} is an apocalyptic number.

2020001222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020001222220 is an abundant number, since it is smaller than the sum of its proper divisors (3636002200164).

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

2020001222220 is a wasteful number, since it uses less digits than its factorization.

2020001222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33666687049 (or 33666687047 counting only the distinct ones).

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

Adding to 2020001222220 its reverse (222221000202), we get a palindrome (2242222222422).

The spelling of 2020001222220 in words is "two trillion, twenty billion, one million, two hundred twenty-two thousand, two hundred twenty".