111220202020120 has 16 divisors (see below), whose sum is σ = 250245454545360. Its totient is φ = 44488080808032.

The previous prime is 111220202020099. The next prime is 111220202020127. The reversal of 111220202020120 is 21020202022111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111220202020094 and 111220202020103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220202020127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390252525212 + ... + 1390252525291.

It is an arithmetic number, because the mean of its divisors is an integer number (15640340909085).

Almost surely, 2^{111220202020120} is an apocalyptic number.

111220202020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220202020120 is an abundant number, since it is smaller than the sum of its proper divisors (139025252525240).

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

111220202020120 is a wasteful number, since it uses less digits than its factorization.

111220202020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2780505050514 (or 2780505050510 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111220202020120 its reverse (21020202022111), we get a palindrome (132240404042231).

The spelling of 111220202020120 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred two million, twenty thousand, one hundred twenty".