111210011212212 has 96 divisors (see below), whose sum is σ = 314552658672000. Its totient is φ = 33697936224000.

The previous prime is 111210011212199. The next prime is 111210011212241. The reversal of 111210011212212 is 212212110012111.

It is a happy number.

111210011212212 is a `hidden beast` number, since 111 + 210 + 0 + 1 + 121 + 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 31 ways as a sum of consecutive naturals, for example, 16559712 + ... + 22285512.

It is an arithmetic number, because the mean of its divisors is an integer number (3276590194500).

Almost surely, 2^{111210011212212} is an apocalyptic number.

111210011212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111210011212212 is an abundant number, since it is smaller than the sum of its proper divisors (203342647459788).

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

111210011212212 is a wasteful number, since it uses less digits than its factorization.

111210011212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742174 (or 5742166 counting only the distinct ones).

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

Adding to 111210011212212 its reverse (212212110012111), we get a palindrome (323422121224323).

The spelling of 111210011212212 in words is "one hundred eleven trillion, two hundred ten billion, eleven million, two hundred twelve thousand, two hundred twelve".