2002110000021 has 16 divisors (see below), whose sum is σ = 2966188353600. Its totient is φ = 1334695240944.

The previous prime is 2002110000017. The next prime is 2002110000047. The reversal of 2002110000021 is 1200000112002.

It is not a de Polignac number, because 2002110000021 - 2² = 2002110000017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2002109999958 and 2002110000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002110000001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 413166 + ... + 2043263.

It is an arithmetic number, because the mean of its divisors is an integer number (185386772100).

Almost surely, 2^{2002110000021} is an apocalyptic number.

It is an amenable number.

2002110000021 is a deficient number, since it is larger than the sum of its proper divisors (964078353579).

2002110000021 is a wasteful number, since it uses less digits than its factorization.

2002110000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486625 (or 2486619 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2002110000021 its reverse (1200000112002), we get a palindrome (3202110112023).

The spelling of 2002110000021 in words is "two trillion, two billion, one hundred ten million, twenty-one", and thus it is an aban number.