13222313043652 has 6 divisors (see below), whose sum is σ = 23139047826398. Its totient is φ = 6611156521824.

The previous prime is 13222313043619. The next prime is 13222313043659. The reversal of 13222313043652 is 25634031322231.

It can be written as a sum of positive squares in only one way, i.e., 12982228723396 + 240084320256 = 3603086^2 + 489984^2 .

It is not an unprimeable number, because it can be changed into a prime (13222313043659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1652789130453 + ... + 1652789130460.

Almost surely, 2^{13222313043652} is an apocalyptic number.

It is an amenable number.

13222313043652 is a deficient number, since it is larger than the sum of its proper divisors (9916734782746).

13222313043652 is a wasteful number, since it uses less digits than its factorization.

13222313043652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305578260917 (or 3305578260915 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 13222313043652 its reverse (25634031322231), we get a palindrome (38856344365883).

The spelling of 13222313043652 in words is "thirteen trillion, two hundred twenty-two billion, three hundred thirteen million, forty-three thousand, six hundred fifty-two".