11200001100021 has 48 divisors (see below), whose sum is σ = 17086479508800. Its totient is φ = 7061486978304.

The previous prime is 11200001099999. The next prime is 11200001100031. The reversal of 11200001100021 is 12000110000211.

It is a happy number.

11200001100021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11200001100021 - 2⁷ = 11200001099893 is a prime.

It is a super-2 number, since 2×11200001100021² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 11200001099976 and 11200001100012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200001100031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1454011 + ... + 4951176.

It is an arithmetic number, because the mean of its divisors is an integer number (355968323100).

Almost surely, 2^{11200001100021} is an apocalyptic number.

It is an amenable number.

11200001100021 is a deficient number, since it is larger than the sum of its proper divisors (5886478408779).

11200001100021 is a wasteful number, since it uses less digits than its factorization.

11200001100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6405378 (or 6405375 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11200001100021 its reverse (12000110000211), we get a palindrome (23200111100232).

The spelling of 11200001100021 in words is "eleven trillion, two hundred billion, one million, one hundred thousand, twenty-one".