11004134221 has 24 divisors (see below), whose sum is σ = 12637544480. Its totient is φ = 9546377472.

The previous prime is 11004134189. The next prime is 11004134227. The reversal of 11004134221 is 12243140011.

It is not a de Polignac number, because 11004134221 - 2⁵ = 11004134189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11004134227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176086 + ... + 230248.

Almost surely, 2^11004134221 is an apocalyptic number.

It is an amenable number.

11004134221 is a deficient number, since it is larger than the sum of its proper divisors (1633410259).

11004134221 is a wasteful number, since it uses less digits than its factorization.

11004134221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54253 (or 54236 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11004134221 its reverse (12243140011), we get a palindrome (23247274232).

The spelling of 11004134221 in words is "eleven billion, four million, one hundred thirty-four thousand, two hundred twenty-one".