12100111102021 has 8 divisors (see below), whose sum is σ = 12329223852960. Its totient is φ = 11871028305552.

The previous prime is 12100111101983. The next prime is 12100111102061. The reversal of 12100111102021 is 12020111100121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12100111102021 - 2²⁹ = 12099574231109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12100111101992 and 12100111102010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100111102061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6672235 + ... + 8289688.

It is an arithmetic number, because the mean of its divisors is an integer number (1541152981620).

Almost surely, 2^{12100111102021} is an apocalyptic number.

It is an amenable number.

12100111102021 is a deficient number, since it is larger than the sum of its proper divisors (229112750939).

12100111102021 is a wasteful number, since it uses less digits than its factorization.

12100111102021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14977235.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12100111102021 its reverse (12020111100121), we get a palindrome (24120222202142).

The spelling of 12100111102021 in words is "twelve trillion, one hundred billion, one hundred eleven million, one hundred two thousand, twenty-one".