1232221442 has 4 divisors (see below), whose sum is σ = 1848332166. Its totient is φ = 616110720.

The previous prime is 1232221379. The next prime is 1232221451. The reversal of 1232221442 is 2441222321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1066610281 + 165611161 = 32659^2 + 12869^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308055359 + ... + 308055362.

Almost surely, 2^1232221442 is an apocalyptic number.

1232221442 is a deficient number, since it is larger than the sum of its proper divisors (616110724).

1232221442 is an equidigital number, since it uses as much as digits as its factorization.

1232221442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616110723.

The product of its digits is 1536, while the sum is 23.

The square root of 1232221442 is about 35103.0118650808. The cubic root of 1232221442 is about 1072.0859074105.

Adding to 1232221442 its reverse (2441222321), we get a palindrome (3673443763).

The spelling of 1232221442 in words is "one billion, two hundred thirty-two million, two hundred twenty-one thousand, four hundred forty-two".