11112001210120 has 32 divisors (see below), whose sum is σ = 25003202416920. Its totient is φ = 4444587205120.

The previous prime is 11112001210117. The next prime is 11112001210151. The reversal of 11112001210120 is 2101210021111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6073691244196 + 5038309965924 = 2464486^2 + 2244618^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 11112001210120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5819611 + ... + 7489450.

Almost surely, 2^{11112001210120} is an apocalyptic number.

11112001210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11112001210120 is an abundant number, since it is smaller than the sum of its proper divisors (13891201206800).

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

11112001210120 is a wasteful number, since it uses less digits than its factorization.

11112001210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13329945 (or 13329941 counting only the distinct ones).

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

Adding to 11112001210120 its reverse (2101210021111), we get a palindrome (13213211231231).

The spelling of 11112001210120 in words is "eleven trillion, one hundred twelve billion, one million, two hundred ten thousand, one hundred twenty".