11122327121 has 4 divisors (see below), whose sum is σ = 11310841200. Its totient is φ = 10933813044.

The previous prime is 11122327057. The next prime is 11122327127. The reversal of 11122327121 is 12172322111.

It is a happy number.

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 11122327121 - 2⁶ = 11122327057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11122327127) 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, 94256951 + ... + 94257068.

It is an arithmetic number, because the mean of its divisors is an integer number (2827710300).

Almost surely, 2^11122327121 is an apocalyptic number.

It is an amenable number.

11122327121 is a deficient number, since it is larger than the sum of its proper divisors (188514079).

11122327121 is an equidigital number, since it uses as much as digits as its factorization.

11122327121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188514078.

The product of its digits is 336, while the sum is 23.

Adding to 11122327121 its reverse (12172322111), we get a palindrome (23294649232).

The spelling of 11122327121 in words is "eleven billion, one hundred twenty-two million, three hundred twenty-seven thousand, one hundred twenty-one".