1111202002120 has 96 divisors (see below), whose sum is σ = 2912506918200. Its totient is φ = 380445714432.

The previous prime is 1111202002117. The next prime is 1111202002153. The reversal of 1111202002120 is 212002021111.

It can be written as a sum of positive squares in 4 ways, for example, as 982560702564 + 128641299556 = 991242^2 + 358666^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1111202002120.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 989824 + ... + 1789456.

Almost surely, 2^{1111202002120} is an apocalyptic number.

1111202002120 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 1111202002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1456253459100).

1111202002120 is an abundant number, since it is smaller than the sum of its proper divisors (1801304916080).

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

1111202002120 is a wasteful number, since it uses less digits than its factorization.

1111202002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800367 (or 800356 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1111202002120 its reverse (212002021111), we get a palindrome (1323204023231).

The spelling of 1111202002120 in words is "one trillion, one hundred eleven billion, two hundred two million, two thousand, one hundred twenty".