13205227396 has 9 divisors (see below), whose sum is σ = 23109550149. Its totient is φ = 6602498784.

The previous prime is 13205227391. The next prime is 13205227417. The reversal of 13205227396 is 69372250231.

The square root of 13205227396 is 114914.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9708160900 + 3497066496 = 98530^2 + 59136^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13205227391) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 201100 + ... + 258556.

Almost surely, 2^13205227396 is an apocalyptic number.

13205227396 is the 114914-th square number.

It is an amenable number.

13205227396 is a deficient number, since it is larger than the sum of its proper divisors (9904322753).

13205227396 is an frugal number, since it uses more digits than its factorization.

13205227396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114918 (or 57459 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 13205227396 in words is "thirteen billion, two hundred five million, two hundred twenty-seven thousand, three hundred ninety-six".