20002021122020 has 96 divisors (see below), whose sum is σ = 49557733790208. Its totient is φ = 6637916086272.

The previous prime is 20002021121891. The next prime is 20002021122059. The reversal of 20002021122020 is 2022112020002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 20002021121986 and 20002021122004.

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, 9003872 + ... + 11003351.

It is an arithmetic number, because the mean of its divisors is an integer number (516226393648).

Almost surely, 2^{20002021122020} is an apocalyptic number.

20002021122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002021122020 is an abundant number, since it is smaller than the sum of its proper divisors (29555712668188).

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

20002021122020 is a wasteful number, since it uses less digits than its factorization.

20002021122020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20007469 (or 20007467 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20002021122020 its reverse (2022112020002), we get a palindrome (22024133142022).

The spelling of 20002021122020 in words is "twenty trillion, two billion, twenty-one million, one hundred twenty-two thousand, twenty".