13000031222 has 16 divisors (see below), whose sum is σ = 19669388544. Its totient is φ = 6443745000.

The previous prime is 13000031207. The next prime is 13000031309. The reversal of 13000031222 is 22213000031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13000031197 and 13000031206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104447 + ... + 192117.

It is an arithmetic number, because the mean of its divisors is an integer number (1229336784).

Almost surely, 2^13000031222 is an apocalyptic number.

13000031222 is a deficient number, since it is larger than the sum of its proper divisors (6669357322).

13000031222 is a wasteful number, since it uses less digits than its factorization.

13000031222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88315.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 13000031222 its reverse (22213000031), we get a palindrome (35213031253).

It can be divided in two parts, 13000031 and 222, that multiplied together give a palindrome (2886006882).

The spelling of 13000031222 in words is "thirteen billion, thirty-one thousand, two hundred twenty-two".