11232242121 has 16 divisors (see below), whose sum is σ = 15462264320. Its totient is φ = 7245279360.

The previous prime is 11232242117. The next prime is 11232242123. The reversal of 11232242121 is 12124223211.

It is a happy number.

It is not a de Polignac number, because 11232242121 - 2² = 11232242117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11232242123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 898965 + ... + 911373.

It is an arithmetic number, because the mean of its divisors is an integer number (966391520).

Almost surely, 2^11232242121 is an apocalyptic number.

It is an amenable number.

11232242121 is a deficient number, since it is larger than the sum of its proper divisors (4230022199).

11232242121 is a wasteful number, since it uses less digits than its factorization.

11232242121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22176.

The product of its digits is 384, while the sum is 21.

Adding to 11232242121 its reverse (12124223211), we get a palindrome (23356465332).

The spelling of 11232242121 in words is "eleven billion, two hundred thirty-two million, two hundred forty-two thousand, one hundred twenty-one".