13221562346 has 8 divisors (see below), whose sum is σ = 19833950820. Its totient is φ = 6610245408.

The previous prime is 13221562331. The next prime is 13221562379. The reversal of 13221562346 is 64326512231.

It can be written as a sum of positive squares in 2 ways, for example, as 12998508121 + 223054225 = 114011^2 + 14935^2 .

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, 236291 + ... + 286838.

Almost surely, 2^13221562346 is an apocalyptic number.

13221562346 is a deficient number, since it is larger than the sum of its proper divisors (6612388474).

13221562346 is a wasteful number, since it uses less digits than its factorization.

13221562346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535768.

The product of its digits is 51840, while the sum is 35.

The spelling of 13221562346 in words is "thirteen billion, two hundred twenty-one million, five hundred sixty-two thousand, three hundred forty-six".