20002220220000 has 120 divisors (see below), whose sum is σ = 65611282962456. Its totient is φ = 5333925376000.

The previous prime is 20002220219983. The next prime is 20002220220001. The reversal of 20002220220000 is 2202220002.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002220220001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 166625169 + ... + 166745168.

Almost surely, 2^{20002220220000} is an apocalyptic number.

20002220220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002220220000 is an abundant number, since it is smaller than the sum of its proper divisors (45609062742456).

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

20002220220000 is an equidigital number, since it uses as much as digits as its factorization.

20002220220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333370370 (or 333370347 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 20002220220000 its reverse (2202220002), we get a palindrome (20004422440002).

The spelling of 20002220220000 in words is "twenty trillion, two billion, two hundred twenty million, two hundred twenty thousand".