13222330 has 32 divisors (see below), whose sum is σ = 26345088. Its totient is φ = 4737600.

The previous prime is 13222327. The next prime is 13222331. The reversal of 13222330 is 3322231.

13222330 = T₁₅₄₅ + T₁₅₄₆ + ... + T₁₅₅₅.

13222330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13222331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6964 + ... + 8656.

It is an arithmetic number, because the mean of its divisors is an integer number (823284).

Almost surely, 2^13222330 is an apocalyptic number.

13222330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13222330 is a deficient number, since it is larger than the sum of its proper divisors (13122758).

13222330 is a wasteful number, since it uses less digits than its factorization.

13222330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 13222330 is about 3636.2521914741. The cubic root of 13222330 is about 236.4663406544.

Adding to 13222330 its reverse (3322231), we get a palindrome (16544561).

Subtracting from 13222330 its reverse (3322231), we obtain a palindrome (9900099).

The spelling of 13222330 in words is "thirteen million, two hundred twenty-two thousand, three hundred thirty".