7223201222 has 4 divisors (see below), whose sum is σ = 10834801836. Its totient is φ = 3611600610.

The previous prime is 7223201173. The next prime is 7223201239. The reversal of 7223201222 is 2221023227.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1805800304 + ... + 1805800307.

It is an arithmetic number, because the mean of its divisors is an integer number (2708700459).

Almost surely, 2^7223201222 is an apocalyptic number.

7223201222 is a deficient number, since it is larger than the sum of its proper divisors (3611600614).

7223201222 is a wasteful number, since it uses less digits than its factorization.

7223201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3611600613.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 7223201222 is about 84989.4182942794. The cubic root of 7223201222 is about 1933.0506687884.

Adding to 7223201222 its reverse (2221023227), we get a palindrome (9444224449).

The spelling of 7223201222 in words is "seven billion, two hundred twenty-three million, two hundred one thousand, two hundred twenty-two".