13222001036252 has 24 divisors (see below), whose sum is σ = 23246954095680. Its totient is φ = 6580041863360.

The previous prime is 13222001036227. The next prime is 13222001036267. The reversal of 13222001036252 is 25263010022231.

It is a super-2 number, since 2×13222001036252² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553699 + ... + 5371962.

It is an arithmetic number, because the mean of its divisors is an integer number (968623087320).

Almost surely, 2^{13222001036252} is an apocalyptic number.

It is an amenable number.

13222001036252 is a deficient number, since it is larger than the sum of its proper divisors (10024953059428).

13222001036252 is a wasteful number, since it uses less digits than its factorization.

13222001036252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6927901 (or 6927899 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 13222001036252 its reverse (25263010022231), we get a palindrome (38485011058483).

The spelling of 13222001036252 in words is "thirteen trillion, two hundred twenty-two billion, one million, thirty-six thousand, two hundred fifty-two".