12100111112112 has 40 divisors (see below), whose sum is σ = 31258872679104. Its totient is φ = 4033337815104.

The previous prime is 12100111112087. The next prime is 12100111112137. The reversal of 12100111112112 is 21121111100121.

It is an interprime number because it is at equal distance from previous prime (12100111112087) and next prime (12100111112137).

It is a super-3 number, since 3×12100111112112³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12100111112091 and 12100111112100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5410003 + ... + 7312205.

Almost surely, 2^{12100111112112} is an apocalyptic number.

12100111112112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12100111112112 is an abundant number, since it is smaller than the sum of its proper divisors (19158761566992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12100111112112 is a wasteful number, since it uses less digits than its factorization.

12100111112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034737 (or 2034731 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 12100111112112 its reverse (21121111100121), we get a palindrome (33221222212233).

The spelling of 12100111112112 in words is "twelve trillion, one hundred billion, one hundred eleven million, one hundred twelve thousand, one hundred twelve".