111002220120 has 192 divisors, whose sum is σ = 387564276960. Its totient is φ = 25326653440.

The previous prime is 111002220113. The next prime is 111002220157. The reversal of 111002220120 is 21022200111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111002220096 and 111002220105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21994 + ... + 471686.

Almost surely, 2^111002220120 is an apocalyptic number.

111002220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111002220120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193782138480).

111002220120 is an abundant number, since it is smaller than the sum of its proper divisors (276562056840).

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

111002220120 is a wasteful number, since it uses less digits than its factorization.

111002220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449746 (or 449731 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111002220120 its reverse (21022200111), we get a palindrome (132024420231).

The spelling of 111002220120 in words is "one hundred eleven billion, two million, two hundred twenty thousand, one hundred twenty".