11112120200021 has 16 divisors (see below), whose sum is σ = 11831901724800. Its totient is φ = 10399690088448.

The previous prime is 11112120199933. The next prime is 11112120200053. The reversal of 11112120200021 is 12000202121111.

It is a cyclic number.

It is not a de Polignac number, because 11112120200021 - 2²⁶ = 11112053091157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112120199969 and 11112120200005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112120280021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156158576 + ... + 156229718.

It is an arithmetic number, because the mean of its divisors is an integer number (739493857800).

Almost surely, 2^{11112120200021} is an apocalyptic number.

It is an amenable number.

11112120200021 is a deficient number, since it is larger than the sum of its proper divisors (719781524779).

11112120200021 is a wasteful number, since it uses less digits than its factorization.

11112120200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122668.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11112120200021 its reverse (12000202121111), we get a palindrome (23112322321132).

The spelling of 11112120200021 in words is "eleven trillion, one hundred twelve billion, one hundred twenty million, two hundred thousand, twenty-one".