13222001036251 has 8 divisors (see below), whose sum is σ = 15110894260224. Its totient is φ = 11333116795560.

The previous prime is 13222001036227. The next prime is 13222001036267. The reversal of 13222001036251 is 15263010022231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13222001036251 - 2⁹ = 13222001035739 is a prime.

It is a super-2 number, since 2×13222001036251² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13222001036281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1276416 + ... + 5298418.

It is an arithmetic number, because the mean of its divisors is an integer number (1888861782528).

Almost surely, 2^{13222001036251} is an apocalyptic number.

13222001036251 is a deficient number, since it is larger than the sum of its proper divisors (1888893223973).

13222001036251 is an equidigital number, since it uses as much as digits as its factorization.

13222001036251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491641.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 13222001036251 its reverse (15263010022231), we get a palindrome (28485011058482).

The spelling of 13222001036251 in words is "thirteen trillion, two hundred twenty-two billion, one million, thirty-six thousand, two hundred fifty-one".