111202221212112 has 40 divisors (see below), whose sum is σ = 302392005052960. Its totient is φ = 35116490908800.

The previous prime is 111202221212101. The next prime is 111202221212123. The reversal of 111202221212112 is 211212122202111.

It is an interprime number because it is at equal distance from previous prime (111202221212101) and next prime (111202221212123).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 60966129139 + ... + 60966130962.

It is an arithmetic number, because the mean of its divisors is an integer number (7559800126324).

Almost surely, 2^{111202221212112} is an apocalyptic number.

111202221212112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111202221212112 is an abundant number, since it is smaller than the sum of its proper divisors (191189783840848).

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

111202221212112 is a wasteful number, since it uses less digits than its factorization.

111202221212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121932260131 (or 121932260125 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111202221212112 its reverse (211212122202111), we get a palindrome (322414343414223).

The spelling of 111202221212112 in words is "one hundred eleven trillion, two hundred two billion, two hundred twenty-one million, two hundred twelve thousand, one hundred twelve".