1111011220120 has 32 divisors (see below), whose sum is σ = 2499805994400. Its totient is φ = 444399021568.

The previous prime is 1111011220093. The next prime is 1111011220171. The reversal of 1111011220120 is 210221101111.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1111011220120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5228592 + ... + 5436928.

It is an arithmetic number, because the mean of its divisors is an integer number (78118937325).

Almost surely, 2^{1111011220120} is an apocalyptic number.

1111011220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111011220120 is an abundant number, since it is smaller than the sum of its proper divisors (1388794774280).

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

1111011220120 is a wasteful number, since it uses less digits than its factorization.

1111011220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341667 (or 341663 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1111011220120 its reverse (210221101111), we get a palindrome (1321232321231).

The spelling of 1111011220120 in words is "one trillion, one hundred eleven billion, eleven million, two hundred twenty thousand, one hundred twenty".