13007221826 has 4 divisors (see below), whose sum is σ = 19510832742. Its totient is φ = 6503610912.

The previous prime is 13007221807. The next prime is 13007221921. The reversal of 13007221826 is 62812270031.

13007221826 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11739505801 + 1267716025 = 108349^2 + 35605^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13007221792 and 13007221801.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3251805455 + ... + 3251805458.

Almost surely, 2^13007221826 is an apocalyptic number.

13007221826 is a deficient number, since it is larger than the sum of its proper divisors (6503610916).

13007221826 is an equidigital number, since it uses as much as digits as its factorization.

13007221826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6503610915.

The product of its (nonzero) digits is 8064, while the sum is 32.

Adding to 13007221826 its reverse (62812270031), we get a palindrome (75819491857).

The spelling of 13007221826 in words is "thirteen billion, seven million, two hundred twenty-one thousand, eight hundred twenty-six".