111100102212 has 96 divisors (see below), whose sum is σ = 289625269248. Its totient is φ = 32863600000.

The previous prime is 111100102147. The next prime is 111100102213. The reversal of 111100102212 is 212201001111.

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 (111100102213) 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, 887887 + ... + 1005257.

It is an arithmetic number, because the mean of its divisors is an integer number (3016929888).

Almost surely, 2^111100102212 is an apocalyptic number.

111100102212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111100102212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144812634624).

111100102212 is an abundant number, since it is smaller than the sum of its proper divisors (178525167036).

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

111100102212 is a wasteful number, since it uses less digits than its factorization.

111100102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117561 (or 117559 counting only the distinct ones).

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

Adding to 111100102212 its reverse (212201001111), we get a palindrome (323301103323).

It can be divided in two parts, 111100 and 102212, that added together give a palindrome (213312).

The spelling of 111100102212 in words is "one hundred eleven billion, one hundred million, one hundred two thousand, two hundred twelve".