111212201120 has 24 divisors (see below), whose sum is σ = 262738825524. Its totient is φ = 44484880384.

The previous prime is 111212201119. The next prime is 111212201141. The reversal of 111212201120 is 21102212111.

It can be written as a sum of positive squares in 2 ways, for example, as 109982436496 + 1229764624 = 331636^2 + 35068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111212201095 and 111212201104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347537969 + ... + 347538288.

Almost surely, 2^111212201120 is an apocalyptic number.

111212201120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111212201120 is an abundant number, since it is smaller than the sum of its proper divisors (151526624404).

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

111212201120 is an equidigital number, since it uses as much as digits as its factorization.

111212201120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695076272 (or 695076264 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111212201120 its reverse (21102212111), we get a palindrome (132314413231).

The spelling of 111212201120 in words is "one hundred eleven billion, two hundred twelve million, two hundred one thousand, one hundred twenty".