111210000012120 has 64 divisors (see below), whose sum is σ = 333699755051520. Its totient is φ = 29649799557504.

The previous prime is 111210000012101. The next prime is 111210000012197. The reversal of 111210000012120 is 21210000012111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111210000012096 and 111210000012105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96305614 + ... + 97453533.

It is an arithmetic number, because the mean of its divisors is an integer number (5214058672680).

Almost surely, 2^{111210000012120} is an apocalyptic number.

111210000012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111210000012120 is an abundant number, since it is smaller than the sum of its proper divisors (222489755039400).

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

111210000012120 is a wasteful number, since it uses less digits than its factorization.

111210000012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193763944 (or 193763940 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111210000012120 its reverse (21210000012111), we get a palindrome (132420000024231).

Subtracting from 111210000012120 its reverse (21210000012111), we obtain a palindrome (90000000000009).

The spelling of 111210000012120 in words is "one hundred eleven trillion, two hundred ten billion, twelve thousand, one hundred twenty".