11122200021 has 8 divisors (see below), whose sum is σ = 14830140544. Its totient is φ = 7414529760.

The previous prime is 11122200017. The next prime is 11122200029. The reversal of 11122200021 is 12000222111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11122200021 - 2² = 11122200017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122200029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66420 + ... + 163266.

It is an arithmetic number, because the mean of its divisors is an integer number (1853767568).

Almost surely, 2^11122200021 is an apocalyptic number.

It is an amenable number.

11122200021 is a deficient number, since it is larger than the sum of its proper divisors (3707940523).

11122200021 is an equidigital number, since it uses as much as digits as its factorization.

11122200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135131.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11122200021 its reverse (12000222111), we get a palindrome (23122422132).

The spelling of 11122200021 in words is "eleven billion, one hundred twenty-two million, two hundred thousand, twenty-one".