11404324221 has 4 divisors (see below), whose sum is σ = 15205765632. Its totient is φ = 7602882812.

The previous prime is 11404324213. The next prime is 11404324231. The reversal of 11404324221 is 12242340411.

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 11404324221 - 2³ = 11404324213 is a prime.

It is a super-2 number, since 2×11404324221² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11404324191 and 11404324200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11404324231) 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, 1900720701 + ... + 1900720706.

It is an arithmetic number, because the mean of its divisors is an integer number (3801441408).

Almost surely, 2^11404324221 is an apocalyptic number.

It is an amenable number.

11404324221 is a deficient number, since it is larger than the sum of its proper divisors (3801441411).

11404324221 is an equidigital number, since it uses as much as digits as its factorization.

11404324221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801441410.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11404324221 its reverse (12242340411), we get a palindrome (23646664632).

The spelling of 11404324221 in words is "eleven billion, four hundred four million, three hundred twenty-four thousand, two hundred twenty-one".