12102100121211 has 32 divisors (see below), whose sum is σ = 16361359745280. Its totient is φ = 7956178909056.

The previous prime is 12102100121179. The next prime is 12102100121219. The reversal of 12102100121211 is 11212100120121.

It is a happy number.

It is not a de Polignac number, because 12102100121211 - 2⁵ = 12102100121179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12102100121219) 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, 236542245 + ... + 236593401.

It is an arithmetic number, because the mean of its divisors is an integer number (511292492040).

Almost surely, 2^{12102100121211} is an apocalyptic number.

12102100121211 is a deficient number, since it is larger than the sum of its proper divisors (4259259624069).

12102100121211 is a wasteful number, since it uses less digits than its factorization.

12102100121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54683.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12102100121211 its reverse (11212100120121), we get a palindrome (23314200241332).

The spelling of 12102100121211 in words is "twelve trillion, one hundred two billion, one hundred million, one hundred twenty-one thousand, two hundred eleven".