111201121220112 has 240 divisors, whose sum is σ = 388009404701568. Its totient is φ = 28882741432320.

The previous prime is 111201121220093. The next prime is 111201121220207. The reversal of 111201121220112 is 211022121102111.

It is a happy number.

111201121220112 is a `hidden beast` number, since 1 + 11 + 201 + 121 + 220 + 112 = 666.

It is a super-2 number, since 2×111201121220112² (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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 639834858 + ... + 640008630.

Almost surely, 2^{111201121220112} is an apocalyptic number.

111201121220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111201121220112 is an abundant number, since it is smaller than the sum of its proper divisors (276808283481456).

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

111201121220112 is a wasteful number, since it uses less digits than its factorization.

111201121220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231518 (or 231509 counting only the distinct ones).

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

Adding to 111201121220112 its reverse (211022121102111), we get a palindrome (322223242322223).

The spelling of 111201121220112 in words is "one hundred eleven trillion, two hundred one billion, one hundred twenty-one million, two hundred twenty thousand, one hundred twelve".