111012101220120 has 64 divisors (see below), whose sum is σ = 350564530176000. Its totient is φ = 28045162412928.

The previous prime is 111012101220091. The next prime is 111012101220143. The reversal of 111012101220120 is 21022101210111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 111012101220120.

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, 24344756760 + ... + 24344761319.

It is an arithmetic number, because the mean of its divisors is an integer number (5477570784000).

Almost surely, 2^{111012101220120} is an apocalyptic number.

111012101220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012101220120 is an abundant number, since it is smaller than the sum of its proper divisors (239552428955880).

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

111012101220120 is a wasteful number, since it uses less digits than its factorization.

111012101220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48689518112 (or 48689518108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111012101220120 its reverse (21022101210111), we get a palindrome (132034202430231).

The spelling of 111012101220120 in words is "one hundred eleven trillion, twelve billion, one hundred one million, two hundred twenty thousand, one hundred twenty".