111233211012 has 96 divisors (see below), whose sum is σ = 359541719040. Its totient is φ = 28891740960.

The previous prime is 111233210989. The next prime is 111233211017. The reversal of 111233211012 is 210112332111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (111233211017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6679588 + ... + 6696219.

It is an arithmetic number, because the mean of its divisors is an integer number (3745226240).

Almost surely, 2^111233211012 is an apocalyptic number.

111233211012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111233211012 is an abundant number, since it is smaller than the sum of its proper divisors (248308508028).

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

111233211012 is a wasteful number, since it uses less digits than its factorization.

111233211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13375838 (or 13375830 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111233211012 its reverse (210112332111), we get a palindrome (321345543123).

The spelling of 111233211012 in words is "one hundred eleven billion, two hundred thirty-three million, two hundred eleven thousand, twelve".