2002221220020 has 96 divisors (see below), whose sum is σ = 6429909378816. Its totient is φ = 456021888000.

The previous prime is 2002221220019. The next prime is 2002221220031. The reversal of 2002221220020 is 200221222002.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8364531 + ... + 8600570.

It is an arithmetic number, because the mean of its divisors is an integer number (66978222696).

Almost surely, 2^{2002221220020} is an apocalyptic number.

2002221220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2002221220020 is an abundant number, since it is smaller than the sum of its proper divisors (4427688158796).

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

2002221220020 is a wasteful number, since it uses less digits than its factorization.

2002221220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16965401 (or 16965399 counting only the distinct ones).

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

Adding to 2002221220020 its reverse (200221222002), we get a palindrome (2202442442022).

The spelling of 2002221220020 in words is "two trillion, two billion, two hundred twenty-one million, two hundred twenty thousand, twenty".