12000020102021 has 32 divisors (see below), whose sum is σ = 14869740614400. Its totient is φ = 9646479779328.

The previous prime is 12000020102017. The next prime is 12000020102041. The reversal of 12000020102021 is 12020102000021.

It is a happy number.

It is not a de Polignac number, because 12000020102021 - 2² = 12000020102017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12000020101993 and 12000020102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000020102041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1985816 + ... + 5286161.

It is an arithmetic number, because the mean of its divisors is an integer number (464679394200).

Almost surely, 2^{12000020102021} is an apocalyptic number.

It is an amenable number.

12000020102021 is a deficient number, since it is larger than the sum of its proper divisors (2869720512379).

12000020102021 is an equidigital number, since it uses as much as digits as its factorization.

12000020102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272298 (or 7272284 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12000020102021 its reverse (12020102000021), we get a palindrome (24020122102042).

The spelling of 12000020102021 in words is "twelve trillion, twenty million, one hundred two thousand, twenty-one".