111220101112212 has 60 divisors (see below), whose sum is σ = 290752331528736. Its totient is φ = 37073237256720.

The previous prime is 111220101112189. The next prime is 111220101112261. The reversal of 111220101112212 is 212211101022111.

It is a happy number.

111220101112212 is a `hidden beast` number, since 111 + 220 + 1 + 0 + 111 + 221 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 151158403 + ... + 151892405.

Almost surely, 2^{111220101112212} is an apocalyptic number.

111220101112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111220101112212 is an abundant number, since it is smaller than the sum of its proper divisors (179532230416524).

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

111220101112212 is a wasteful number, since it uses less digits than its factorization.

111220101112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201690 (or 1201679 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111220101112212 its reverse (212211101022111), we get a palindrome (323431202134323).

The spelling of 111220101112212 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred one million, one hundred twelve thousand, two hundred twelve".