1321332266 has 8 divisors (see below), whose sum is σ = 2009149284. Its totient is φ = 651615840.

The previous prime is 1321332247. The next prime is 1321332277. The reversal of 1321332266 is 6622331231.

It can be written as a sum of positive squares in 2 ways, for example, as 1304726641 + 16605625 = 36121^2 + 4075^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4524965 + ... + 4525256.

Almost surely, 2^1321332266 is an apocalyptic number.

1321332266 is a deficient number, since it is larger than the sum of its proper divisors (687817018).

1321332266 is an equidigital number, since it uses as much as digits as its factorization.

1321332266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9050296.

The product of its digits is 7776, while the sum is 29.

The square root of 1321332266 is about 36350.1343326266. The cubic root of 1321332266 is about 1097.3302379759.

Adding to 1321332266 its reverse (6622331231), we get a palindrome (7943663497).

The spelling of 1321332266 in words is "one billion, three hundred twenty-one million, three hundred thirty-two thousand, two hundred sixty-six".