111211120220112 has 240 divisors, whose sum is σ = 349197919027776. Its totient is φ = 32747385600000.

The previous prime is 111211120220093. The next prime is 111211120220141. The reversal of 111211120220112 is 211022021112111.

It is a happy number.

111211120220112 is a `hidden beast` number, since 1 + 1 + 1 + 211 + 120 + 220 + 112 = 666.

It is a super-2 number, since 2×111211120220112² (a number of 29 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 12889758 + ... + 19712130.

Almost surely, 2^{111211120220112} is an apocalyptic number.

111211120220112 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 111211120220112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174598959513888).

111211120220112 is an abundant number, since it is smaller than the sum of its proper divisors (237986798807664).

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

111211120220112 is a wasteful number, since it uses less digits than its factorization.

111211120220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6822690 (or 6822681 counting only the distinct ones).

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

Adding to 111211120220112 its reverse (211022021112111), we get a palindrome (322233141332223).

The spelling of 111211120220112 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred twenty million, two hundred twenty thousand, one hundred twelve".