13222513226501 has 4 divisors (see below), whose sum is σ = 13222585238112. Its totient is φ = 13222441214892.

The previous prime is 13222513226491. The next prime is 13222513226551. The reversal of 13222513226501 is 10562231522231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13222513226501 - 2¹⁴ = 13222513210117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222513226551) 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, 35729675 + ... + 36097848.

It is an arithmetic number, because the mean of its divisors is an integer number (3305646309528).

Almost surely, 2^{13222513226501} is an apocalyptic number.

It is an amenable number.

13222513226501 is a deficient number, since it is larger than the sum of its proper divisors (72011611).

13222513226501 is an equidigital number, since it uses as much as digits as its factorization.

13222513226501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72011610.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 13222513226501 its reverse (10562231522231), we get a palindrome (23784744748732).

The spelling of 13222513226501 in words is "thirteen trillion, two hundred twenty-two billion, five hundred thirteen million, two hundred twenty-six thousand, five hundred one".