1111022110120 has 32 divisors (see below), whose sum is σ = 2692092037320. Its totient is φ = 410223548160.

The previous prime is 1111022110097. The next prime is 1111022110123. The reversal of 1111022110120 is 210112201111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 918411722244 + 192610387876 = 958338^2 + 438874^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1111022110120.

It is not an unprimeable number, because it can be changed into a prime (1111022110123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068289971 + ... + 1068291010.

Almost surely, 2^{1111022110120} is an apocalyptic number.

1111022110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111022110120 is an abundant number, since it is smaller than the sum of its proper divisors (1581069927200).

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

1111022110120 is a wasteful number, since it uses less digits than its factorization.

1111022110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136581005 (or 2136581001 counting only the distinct ones).

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

Adding to 1111022110120 its reverse (210112201111), we get a palindrome (1321134311231).

Subtracting from 1111022110120 its reverse (210112201111), we obtain a palindrome (900909909009).

It can be divided in two parts, 111102 and 2110120, that added together give a palindrome (2221222).

The spelling of 1111022110120 in words is "one trillion, one hundred eleven billion, twenty-two million, one hundred ten thousand, one hundred twenty".