11332221121 has 4 divisors (see below), whose sum is σ = 12203930452. Its totient is φ = 10460511792.

The previous prime is 11332221107. The next prime is 11332221181. The reversal of 11332221121 is 12112223311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 470412721 + 10861808400 = 21689^2 + 104220^2 .

It is a cyclic number.

It is not a de Polignac number, because 11332221121 - 2³³ = 2742286529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11332221101) 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, 435854646 + ... + 435854671.

It is an arithmetic number, because the mean of its divisors is an integer number (3050982613).

Almost surely, 2^11332221121 is an apocalyptic number.

It is an amenable number.

11332221121 is a deficient number, since it is larger than the sum of its proper divisors (871709331).

11332221121 is an equidigital number, since it uses as much as digits as its factorization.

11332221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871709330.

The product of its digits is 144, while the sum is 19.

Adding to 11332221121 its reverse (12112223311), we get a palindrome (23444444432).

The spelling of 11332221121 in words is "eleven billion, three hundred thirty-two million, two hundred twenty-one thousand, one hundred twenty-one".