11433104421221 has 16 divisors (see below), whose sum is σ = 13754215939200. Its totient is φ = 9283953526848.

The previous prime is 11433104421217. The next prime is 11433104421229. The reversal of 11433104421221 is 12212440133411.

It is not a de Polignac number, because 11433104421221 - 2² = 11433104421217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11433104421229) 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, 23627735 + ... + 24106763.

It is an arithmetic number, because the mean of its divisors is an integer number (859638496200).

Almost surely, 2^{11433104421221} is an apocalyptic number.

It is an amenable number.

11433104421221 is a deficient number, since it is larger than the sum of its proper divisors (2321111517979).

11433104421221 is a wasteful number, since it uses less digits than its factorization.

11433104421221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658508.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 11433104421221 its reverse (12212440133411), we get a palindrome (23645544554632).

The spelling of 11433104421221 in words is "eleven trillion, four hundred thirty-three billion, one hundred four million, four hundred twenty-one thousand, two hundred twenty-one".