111002200120 has 64 divisors (see below), whose sum is σ = 286252344000. Its totient is φ = 37948815360.

The previous prime is 111002200103. The next prime is 111002200129. The reversal of 111002200120 is 21002200111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 111002200097 and 111002200106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111002200129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470241 + ... + 665680.

It is an arithmetic number, because the mean of its divisors is an integer number (4472692875).

Almost surely, 2^111002200120 is an apocalyptic number.

111002200120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111002200120 is an abundant number, since it is smaller than the sum of its proper divisors (175250143880).

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

111002200120 is a wasteful number, since it uses less digits than its factorization.

111002200120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136288 (or 1136284 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 111002200120 its reverse (21002200111), we get a palindrome (132004400231).

Subtracting from 111002200120 its reverse (21002200111), we obtain a palindrome (90000000009).

The spelling of 111002200120 in words is "one hundred eleven billion, two million, two hundred thousand, one hundred twenty".