13222001331 has 32 divisors (see below), whose sum is σ = 24421593600. Its totient is φ = 6868571040.

The previous prime is 13222001321. The next prime is 13222001339. The reversal of 13222001331 is 13310022231.

13222001331 is a `hidden beast` number, since 132 + 2 + 200 + 1 + 331 = 666.

It is not a de Polignac number, because 13222001331 - 2⁶ = 13222001267 is a prime.

It is a super-2 number, since 2×13222001331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13222001339) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3177816 + ... + 3181973.

It is an arithmetic number, because the mean of its divisors is an integer number (763174800).

Almost surely, 2^13222001331 is an apocalyptic number.

13222001331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13222001331 is a deficient number, since it is larger than the sum of its proper divisors (11199592269).

13222001331 is a wasteful number, since it uses less digits than its factorization.

13222001331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6359816 (or 6359810 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13222001331 its reverse (13310022231), we get a palindrome (26532023562).

The spelling of 13222001331 in words is "thirteen billion, two hundred twenty-two million, one thousand, three hundred thirty-one".