1232221307 has 4 divisors (see below), whose sum is σ = 1297075080. Its totient is φ = 1167367536.

The previous prime is 1232221267. The next prime is 1232221349. The reversal of 1232221307 is 7031222321.

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

It is a cyclic number.

It is not a de Polignac number, because 1232221307 - 2¹² = 1232217211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232221007) 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, 32426858 + ... + 32426895.

It is an arithmetic number, because the mean of its divisors is an integer number (324268770).

Almost surely, 2^1232221307 is an apocalyptic number.

1232221307 is a deficient number, since it is larger than the sum of its proper divisors (64853773).

1232221307 is an equidigital number, since it uses as much as digits as its factorization.

1232221307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64853772.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1232221307 is about 35103.0099421688. The cubic root of 1232221307 is about 1072.0858682586.

Adding to 1232221307 its reverse (7031222321), we get a palindrome (8263443628).

The spelling of 1232221307 in words is "one billion, two hundred thirty-two million, two hundred twenty-one thousand, three hundred seven".