112121112221112 has 128 divisors (see below), whose sum is σ = 284801179541760. Its totient is φ = 36775169756160.

The previous prime is 112121112221071. The next prime is 112121112221141. The reversal of 112121112221112 is 211122211121211.

It is a super-2 number, since 2×112121112221112² (a number of 29 digits) contains 22 as substring.

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, 11761362298 + ... + 11761371830.

It is an arithmetic number, because the mean of its divisors is an integer number (2225009215170).

Almost surely, 2^{112121112221112} is an apocalyptic number.

112121112221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

112121112221112 is an abundant number, since it is smaller than the sum of its proper divisors (172680067320648).

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

112121112221112 is a wasteful number, since it uses less digits than its factorization.

112121112221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16933 (or 16929 counting only the distinct ones).

The product of its digits is 64, while the sum is 21.

Adding to 112121112221112 its reverse (211122211121211), we get a palindrome (323243323342323).

The spelling of 112121112221112 in words is "one hundred twelve trillion, one hundred twenty-one billion, one hundred twelve million, two hundred twenty-one thousand, one hundred twelve".