2221321346 has 8 divisors (see below), whose sum is σ = 3341870220. Its totient is φ = 1107364608.

The previous prime is 2221321339. The next prime is 2221321351. The reversal of 2221321346 is 6431231222.

It can be written as a sum of positive squares in 2 ways, for example, as 1924138225 + 297183121 = 43865^2 + 17239^2 .

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, 1647191 + ... + 1648538.

Almost surely, 2^2221321346 is an apocalyptic number.

2221321346 is a deficient number, since it is larger than the sum of its proper divisors (1120548874).

2221321346 is a wasteful number, since it uses less digits than its factorization.

2221321346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3296068.

The product of its digits is 3456, while the sum is 26.

The square root of 2221321346 is about 47130.8958752112. The cubic root of 2221321346 is about 1304.7795159965.

Adding to 2221321346 its reverse (6431231222), we get a palindrome (8652552568).

The spelling of 2221321346 in words is "two billion, two hundred twenty-one million, three hundred twenty-one thousand, three hundred forty-six".