12100020210021 has 16 divisors (see below), whose sum is σ = 16246324584000. Its totient is φ = 8010229233408.

The previous prime is 12100020210013. The next prime is 12100020210043. The reversal of 12100020210021 is 12001202000121.

It is not a de Polignac number, because 12100020210021 - 2³ = 12100020210013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12100020209979 and 12100020210006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100020211021) 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, 2354116 + ... + 5453613.

It is an arithmetic number, because the mean of its divisors is an integer number (1015395286500).

Almost surely, 2^{12100020210021} is an apocalyptic number.

It is an amenable number.

12100020210021 is a deficient number, since it is larger than the sum of its proper divisors (4146304373979).

12100020210021 is a wasteful number, since it uses less digits than its factorization.

12100020210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7811348.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12100020210021 its reverse (12001202000121), we get a palindrome (24101222210142).

The spelling of 12100020210021 in words is "twelve trillion, one hundred billion, twenty million, two hundred ten thousand, twenty-one".