1111112212212 has 96 divisors (see below), whose sum is σ = 2910101779200. Its totient is φ = 366587856000.

The previous prime is 1111112212183. The next prime is 1111112212247. The reversal of 1111112212212 is 2122122111111.

It is a happy number.

1111112212212 is a `hidden beast` number, since 111 + 111 + 221 + 221 + 2 = 666.

It is a super-3 number, since 3×1111112212212³ (a number of 37 digits) contains 333 as substring.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38807262 + ... + 38835882.

It is an arithmetic number, because the mean of its divisors is an integer number (30313560200).

Almost surely, 2^{1111112212212} is an apocalyptic number.

1111112212212 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 1111112212212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1455050889600).

1111112212212 is an abundant number, since it is smaller than the sum of its proper divisors (1798989566988).

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

1111112212212 is a wasteful number, since it uses less digits than its factorization.

1111112212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32294 (or 32286 counting only the distinct ones).

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

Adding to 1111112212212 its reverse (2122122111111), we get a palindrome (3233234323323).

The spelling of 1111112212212 in words is "one trillion, one hundred eleven billion, one hundred twelve million, two hundred twelve thousand, two hundred twelve".