20002121333020 has 48 divisors (see below), whose sum is σ = 43388481040128. Its totient is φ = 7737570247680.

The previous prime is 20002121332987. The next prime is 20002121333053. The reversal of 20002121333020 is 2033312120002.

It is an interprime number because it is at equal distance from previous prime (20002121332987) and next prime (20002121333053).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9878589 + ... + 11729908.

It is an arithmetic number, because the mean of its divisors is an integer number (903926688336).

Almost surely, 2^{20002121333020} is an apocalyptic number.

20002121333020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20002121333020 is an abundant number, since it is smaller than the sum of its proper divisors (23386359707108).

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

20002121333020 is a wasteful number, since it uses less digits than its factorization.

20002121333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21610030 (or 21610028 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20002121333020 its reverse (2033312120002), we get a palindrome (22035433453022).

The spelling of 20002121333020 in words is "twenty trillion, two billion, one hundred twenty-one million, three hundred thirty-three thousand, twenty".