11234230221 has 12 divisors (see below), whose sum is σ = 15513304352. Its totient is φ = 7231227024.

The previous prime is 11234230219. The next prime is 11234230229. The reversal of 11234230221 is 12203243211.

It is not a de Polignac number, because 11234230221 - 2¹ = 11234230219 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 (11234230229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2223841 + ... + 2228886.

Almost surely, 2^11234230221 is an apocalyptic number.

It is an amenable number.

11234230221 is a deficient number, since it is larger than the sum of its proper divisors (4279074131).

11234230221 is an equidigital number, since it uses as much as digits as its factorization.

11234230221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4452788 (or 4452759 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11234230221 its reverse (12203243211), we get a palindrome (23437473432).

The spelling of 11234230221 in words is "eleven billion, two hundred thirty-four million, two hundred thirty thousand, two hundred twenty-one".