12100221099999 has 10 divisors (see below), whose sum is σ = 18075638927280. Its totient is φ = 8066814066612.

The previous prime is 12100221099991. The next prime is 12100221100103. The reversal of 12100221099999 is 99999012200121.

It is not a de Polignac number, because 12100221099999 - 2³ = 12100221099991 is a prime.

It is a super-2 number, since 2×12100221099999² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100221099991) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 74692722759 + ... + 74692722920.

It is an arithmetic number, because the mean of its divisors is an integer number (1807563892728).

Almost surely, 2^{12100221099999} is an apocalyptic number.

12100221099999 is a deficient number, since it is larger than the sum of its proper divisors (5975417827281).

12100221099999 is an equidigital number, since it uses as much as digits as its factorization.

12100221099999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149385445691 (or 149385445682 counting only the distinct ones).

The product of its (nonzero) digits is 472392, while the sum is 54.

The spelling of 12100221099999 in words is "twelve trillion, one hundred billion, two hundred twenty-one million, ninety-nine thousand, nine hundred ninety-nine".