111120111012 has 12 divisors (see below), whose sum is σ = 259280259056. Its totient is φ = 37040037000.

The previous prime is 111120110971. The next prime is 111120111049. The reversal of 111120111012 is 210111021111.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 9260009251 = 111120111012 / (1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 0 + 1 + 2).

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, 4630004614 + ... + 4630004637.

Almost surely, 2^111120111012 is an apocalyptic number.

111120111012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111120111012 is an abundant number, since it is smaller than the sum of its proper divisors (148160148044).

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

111120111012 is a wasteful number, since it uses less digits than its factorization.

111120111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9260009258 (or 9260009256 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 111120111012 its reverse (210111021111), we get a palindrome (321231132123).

The spelling of 111120111012 in words is "one hundred eleven billion, one hundred twenty million, one hundred eleven thousand, twelve".