13221553315 has 8 divisors (see below), whose sum is σ = 16203435840. Its totient is φ = 10352194752.

The previous prime is 13221553291. The next prime is 13221553321. The reversal of 13221553315 is 51335512231.

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

It is a cyclic number.

It is not a de Polignac number, because 13221553315 - 2¹⁷ = 13221422243 is a prime.

It is a super-2 number, since 2×13221553315² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28130730 + ... + 28131199.

It is an arithmetic number, because the mean of its divisors is an integer number (2025429480).

Almost surely, 2^13221553315 is an apocalyptic number.

13221553315 is a deficient number, since it is larger than the sum of its proper divisors (2981882525).

13221553315 is an equidigital number, since it uses as much as digits as its factorization.

13221553315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56261981.

The product of its digits is 13500, while the sum is 31.

The spelling of 13221553315 in words is "thirteen billion, two hundred twenty-one million, five hundred fifty-three thousand, three hundred fifteen".