12100202012121 has 16 divisors (see below), whose sum is σ = 16261231702848. Its totient is φ = 8003020708800.

The previous prime is 12100202012039. The next prime is 12100202012147. The reversal of 12100202012121 is 12121020200121.

It is not a de Polignac number, because 12100202012121 - 2⁷ = 12100202011993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12100202012121.

It is not an unprimeable number, because it can be changed into a prime (12100202012191) 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, 2803450 + ... + 5662131.

It is an arithmetic number, because the mean of its divisors is an integer number (1016326981428).

Almost surely, 2^{12100202012121} is an apocalyptic number.

It is an amenable number.

12100202012121 is a deficient number, since it is larger than the sum of its proper divisors (4161029690727).

12100202012121 is a wasteful number, since it uses less digits than its factorization.

12100202012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8469352.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12100202012121 its reverse (12121020200121), we get a palindrome (24221222212242).

The spelling of 12100202012121 in words is "twelve trillion, one hundred billion, two hundred two million, twelve thousand, one hundred twenty-one".