11122112200021 has 4 divisors (see below), whose sum is σ = 11122330028544. Its totient is φ = 11121894371500.

The previous prime is 11122112199983. The next prime is 11122112200033. The reversal of 11122112200021 is 12000221122111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11122112200021 - 2⁷ = 11122112199893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122112199968 and 11122112200004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122112200081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108837655 + ... + 108939796.

It is an arithmetic number, because the mean of its divisors is an integer number (2780582507136).

Almost surely, 2^{11122112200021} is an apocalyptic number.

It is an amenable number.

11122112200021 is a deficient number, since it is larger than the sum of its proper divisors (217828523).

11122112200021 is an equidigital number, since it uses as much as digits as its factorization.

11122112200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217828522.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11122112200021 its reverse (12000221122111), we get a palindrome (23122333322132).

The spelling of 11122112200021 in words is "eleven trillion, one hundred twenty-two billion, one hundred twelve million, two hundred thousand, twenty-one".