13233322211221 has 48 divisors (see below), whose sum is σ = 15581220462720. Its totient is φ = 11205512801280.

The previous prime is 13233322211191. The next prime is 13233322211261. The reversal of 13233322211221 is 12211222333231.

13233322211221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13233322211221 - 2¹⁹ = 13233321686933 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13233322211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13233322211261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3138087105 + ... + 3138091321.

It is an arithmetic number, because the mean of its divisors is an integer number (324608759640).

Almost surely, 2^{13233322211221} is an apocalyptic number.

It is an amenable number.

13233322211221 is a deficient number, since it is larger than the sum of its proper divisors (2347898251499).

13233322211221 is a wasteful number, since it uses less digits than its factorization.

13233322211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6074 (or 6067 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 13233322211221 its reverse (12211222333231), we get a palindrome (25444544544452).

The spelling of 13233322211221 in words is "thirteen trillion, two hundred thirty-three billion, three hundred twenty-two million, two hundred eleven thousand, two hundred twenty-one".