13221013024 has 12 divisors (see below), whose sum is σ = 26028869454. Its totient is φ = 6610506496.

The previous prime is 13221012941. The next prime is 13221013027. The reversal of 13221013024 is 42031012231.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13211203600 + 9809424 = 114940^2 + 3132^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13221012992 and 13221013010.

It is not an unprimeable number, because it can be changed into a prime (13221013027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206578297 + ... + 206578360.

Almost surely, 2^13221013024 is an apocalyptic number.

It is an amenable number.

13221013024 is a deficient number, since it is larger than the sum of its proper divisors (12807856430).

13221013024 is an equidigital number, since it uses as much as digits as its factorization.

13221013024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413156667 (or 413156659 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13221013024 its reverse (42031012231), we get a palindrome (55252025255).

The spelling of 13221013024 in words is "thirteen billion, two hundred twenty-one million, thirteen thousand, twenty-four".