13221245011333 has 4 divisors (see below), whose sum is σ = 13222149290028. Its totient is φ = 13220340732640.

The previous prime is 13221245011321. The next prime is 13221245011363. The reversal of 13221245011333 is 33311054212231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 492176611809 + 12729068399524 = 701553^2 + 3567782^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221245011333 - 2⁹ = 13221245010821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221245011295 and 13221245011304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221245011313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452117416 + ... + 452146657.

It is an arithmetic number, because the mean of its divisors is an integer number (3305537322507).

Almost surely, 2^{13221245011333} is an apocalyptic number.

It is an amenable number.

13221245011333 is a deficient number, since it is larger than the sum of its proper divisors (904278695).

13221245011333 is an equidigital number, since it uses as much as digits as its factorization.

13221245011333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904278694.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 13221245011333 its reverse (33311054212231), we get a palindrome (46532299223564).

The spelling of 13221245011333 in words is "thirteen trillion, two hundred twenty-one billion, two hundred forty-five million, eleven thousand, three hundred thirty-three".