111002011212 has 24 divisors (see below), whose sum is σ = 262870436416. Its totient is φ = 36448421328.

The previous prime is 111002011181. The next prime is 111002011213. The reversal of 111002011212 is 212110200111.

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

It is not an unprimeable number, because it can be changed into a prime (111002011213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69030298 + ... + 69031905.

Almost surely, 2^111002011212 is an apocalyptic number.

111002011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111002011212 is an abundant number, since it is smaller than the sum of its proper divisors (151868425204).

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

111002011212 is a wasteful number, since it uses less digits than its factorization.

111002011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138062277 (or 138062275 counting only the distinct ones).

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

Adding to 111002011212 its reverse (212110200111), we get a palindrome (323112211323).

The spelling of 111002011212 in words is "one hundred eleven billion, two million, eleven thousand, two hundred twelve".