1134232221 has 4 divisors (see below), whose sum is σ = 1512309632. Its totient is φ = 756154812.

The previous prime is 1134232181. The next prime is 1134232223. The reversal of 1134232221 is 1222324311.

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 not a de Polignac number, because 1134232221 - 2⁶ = 1134232157 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 (1134232223) 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, 189038701 + ... + 189038706.

It is an arithmetic number, because the mean of its divisors is an integer number (378077408).

Almost surely, 2^1134232221 is an apocalyptic number.

It is an amenable number.

1134232221 is a deficient number, since it is larger than the sum of its proper divisors (378077411).

1134232221 is an equidigital number, since it uses as much as digits as its factorization.

1134232221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378077410.

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

The square root of 1134232221 is about 33678.3642862892. The cubic root of 1134232221 is about 1042.8791708283.

Adding to 1134232221 its reverse (1222324311), we get a palindrome (2356556532).

The spelling of 1134232221 in words is "one billion, one hundred thirty-four million, two hundred thirty-two thousand, two hundred twenty-one".