111201010012120 has 64 divisors (see below), whose sum is σ = 300995215084800. Its totient is φ = 36119425806720.

The previous prime is 111201010012111. The next prime is 111201010012133. The reversal of 111201010012120 is 21210010102111.

It is a happy number.

It is a super-2 number, since 2×111201010012120² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111201010012120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10451217426 + ... + 10451228065.

It is an arithmetic number, because the mean of its divisors is an integer number (4703050235700).

Almost surely, 2^{111201010012120} is an apocalyptic number.

111201010012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111201010012120 is an abundant number, since it is smaller than the sum of its proper divisors (189794205072680).

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

111201010012120 is a wasteful number, since it uses less digits than its factorization.

111201010012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20902445528 (or 20902445524 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111201010012120 its reverse (21210010102111), we get a palindrome (132411020114231).

The spelling of 111201010012120 in words is "one hundred eleven trillion, two hundred one billion, ten million, twelve thousand, one hundred twenty".