3312221305 has 4 divisors (see below), whose sum is σ = 3974665572. Its totient is φ = 2649777040.

The previous prime is 3312221281. The next prime is 3312221327. The reversal of 3312221305 is 5031222133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5031222133 = 7 ⋅718746019.

It can be written as a sum of positive squares in 2 ways, for example, as 1082870649 + 2229350656 = 32907^2 + 47216^2 .

It is not a de Polignac number, because 3312221305 - 2²⁵ = 3278666873 is a prime.

It is a Duffinian number.

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, 331222126 + ... + 331222135.

It is an arithmetic number, because the mean of its divisors is an integer number (993666393).

Almost surely, 2^3312221305 is an apocalyptic number.

It is an amenable number.

3312221305 is a deficient number, since it is larger than the sum of its proper divisors (662444267).

3312221305 is an equidigital number, since it uses as much as digits as its factorization.

3312221305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662444266.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 3312221305 is about 57551.9009677352. The cubic root of 3312221305 is about 1490.6411823871.

Adding to 3312221305 its reverse (5031222133), we get a palindrome (8343443438).

The spelling of 3312221305 in words is "three billion, three hundred twelve million, two hundred twenty-one thousand, three hundred five".