111010212012 has 48 divisors (see below), whose sum is σ = 300445564160. Its totient is φ = 31243810752.

The previous prime is 111010211993. The next prime is 111010212013. The reversal of 111010212012 is 210212010111.

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 (111010212013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9856687 + ... + 9867942.

Almost surely, 2^111010212012 is an apocalyptic number.

111010212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111010212012 is an abundant number, since it is smaller than the sum of its proper divisors (189435352148).

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

111010212012 is a wasteful number, since it uses less digits than its factorization.

111010212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19724710 (or 19724708 counting only the distinct ones).

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

Adding to 111010212012 its reverse (210212010111), we get a palindrome (321222222123).

The spelling of 111010212012 in words is "one hundred eleven billion, ten million, two hundred twelve thousand, twelve".