12102121200112 has 20 divisors (see below), whose sum is σ = 23447928120480. Its totient is φ = 6051042975488.

The previous prime is 12102121200109. The next prime is 12102121200173. The reversal of 12102121200112 is 21100212120121.

It is a super-2 number, since 2×12102121200112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5919528 + ... + 7697080.

It is an arithmetic number, because the mean of its divisors is an integer number (1172396406024).

Almost surely, 2^{12102121200112} is an apocalyptic number.

It is an amenable number.

12102121200112 is a deficient number, since it is larger than the sum of its proper divisors (11345806920368).

12102121200112 is a wasteful number, since it uses less digits than its factorization.

12102121200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203080 (or 2203074 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12102121200112 its reverse (21100212120121), we get a palindrome (33202333320233).

The spelling of 12102121200112 in words is "twelve trillion, one hundred two billion, one hundred twenty-one million, two hundred thousand, one hundred twelve".