111102232212 has 36 divisors (see below), whose sum is σ = 284797277856. Its totient is φ = 36512469840.

The previous prime is 111102232211. The next prime is 111102232217. The reversal of 111102232212 is 212232201111.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111102232211) 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 11 ways as a sum of consecutive naturals, for example, 21731058 + ... + 21736169.

It is an arithmetic number, because the mean of its divisors is an integer number (7911035496).

Almost surely, 2^111102232212 is an apocalyptic number.

111102232212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111102232212 is an abundant number, since it is smaller than the sum of its proper divisors (173695045644).

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

111102232212 is a wasteful number, since it uses less digits than its factorization.

111102232212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43467308 (or 43467303 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111102232212 its reverse (212232201111), we get a palindrome (323334433323).

The spelling of 111102232212 in words is "one hundred eleven billion, one hundred two million, two hundred thirty-two thousand, two hundred twelve".