13201222 has 4 divisors (see below), whose sum is σ = 19801836. Its totient is φ = 6600610.

The previous prime is 13201217. The next prime is 13201249. The reversal of 13201222 is 22210231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22210231 = 43 ⋅516517.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300304 + ... + 3300307.

It is an arithmetic number, because the mean of its divisors is an integer number (4950459).

Almost surely, 2^13201222 is an apocalyptic number.

13201222 is a deficient number, since it is larger than the sum of its proper divisors (6600614).

13201222 is an equidigital number, since it uses as much as digits as its factorization.

13201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6600613.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13201222 is about 3633.3485932401. The cubic root of 13201222 is about 236.3404427753.

Adding to 13201222 its reverse (22210231), we get a palindrome (35411453).

Subtracting 13201222 from its reverse (22210231), we obtain a palindrome (9009009).

The spelling of 13201222 in words is "thirteen million, two hundred one thousand, two hundred twenty-two".