722711222 has 8 divisors (see below), whose sum is σ = 1084231200. Its totient is φ = 361300824.

The previous prime is 722711203. The next prime is 722711261. The reversal of 722711222 is 222117227.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 722711191 and 722711200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8222 + ... + 38897.

It is an arithmetic number, because the mean of its divisors is an integer number (135528900).

Almost surely, 2^722711222 is an apocalyptic number.

722711222 is a deficient number, since it is larger than the sum of its proper divisors (361519978).

722711222 is a wasteful number, since it uses less digits than its factorization.

722711222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54790.

The product of its digits is 1568, while the sum is 26.

The square root of 722711222 is about 26883.2888984960. The cubic root of 722711222 is about 897.4045478518.

Adding to 722711222 its reverse (222117227), we get a palindrome (944828449).

The spelling of 722711222 in words is "seven hundred twenty-two million, seven hundred eleven thousand, two hundred twenty-two".