11423214221 has 16 divisors (see below), whose sum is σ = 11859075648. Its totient is φ = 10995216000.

The previous prime is 11423214199. The next prime is 11423214241. The reversal of 11423214221 is 12241232411.

It is not a de Polignac number, because 11423214221 - 2¹⁴ = 11423197837 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 (11423214241) 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, 3084671 + ... + 3088371.

It is an arithmetic number, because the mean of its divisors is an integer number (741192228).

Almost surely, 2^11423214221 is an apocalyptic number.

It is an amenable number.

11423214221 is a deficient number, since it is larger than the sum of its proper divisors (435861427).

11423214221 is an equidigital number, since it uses as much as digits as its factorization.

11423214221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732.

The product of its digits is 768, while the sum is 23.

Adding to 11423214221 its reverse (12241232411), we get a palindrome (23664446632).

The spelling of 11423214221 in words is "eleven billion, four hundred twenty-three million, two hundred fourteen thousand, two hundred twenty-one".