111212002200120 has 128 divisors (see below), whose sum is σ = 353797715462400. Its totient is φ = 27869676455936.

The previous prime is 111212002200107. The next prime is 111212002200161. The reversal of 111212002200120 is 21002200212111.

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 111212002200120.

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 31 ways as a sum of consecutive naturals, for example, 40018074 + ... + 42706793.

It is an arithmetic number, because the mean of its divisors is an integer number (2764044652050).

Almost surely, 2^{111212002200120} is an apocalyptic number.

111212002200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111212002200120 is an abundant number, since it is smaller than the sum of its proper divisors (242585713262280).

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

111212002200120 is a wasteful number, since it uses less digits than its factorization.

111212002200120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82725557 (or 82725553 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 111212002200120 its reverse (21002200212111), we get a palindrome (132214202412231).

The spelling of 111212002200120 in words is "one hundred eleven trillion, two hundred twelve billion, two million, two hundred thousand, one hundred twenty".