13220221032236 has 6 divisors (see below), whose sum is σ = 23135386806420. Its totient is φ = 6610110516116.

The previous prime is 13220221032233. The next prime is 13220221032283. The reversal of 13220221032236 is 63223012202231.

It is a junction number, because it is equal to n+sod(n) for n = 13220221032199 and 13220221032208.

It is not an unprimeable number, because it can be changed into a prime (13220221032233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1652527629026 + ... + 1652527629033.

It is an arithmetic number, because the mean of its divisors is an integer number (3855897801070).

Almost surely, 2^{13220221032236} is an apocalyptic number.

It is an amenable number.

13220221032236 is a deficient number, since it is larger than the sum of its proper divisors (9915165774184).

13220221032236 is a wasteful number, since it uses less digits than its factorization.

13220221032236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305055258063 (or 3305055258061 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 13220221032236 its reverse (63223012202231), we get a palindrome (76443233234467).

The spelling of 13220221032236 in words is "thirteen trillion, two hundred twenty billion, two hundred twenty-one million, thirty-two thousand, two hundred thirty-six".