722221443 has 12 divisors (see below), whose sum is σ = 1057902768. Its totient is φ = 474699120.

The previous prime is 722221427. The next prime is 722221447. The reversal of 722221443 is 344122227.

It is not a de Polignac number, because 722221443 - 2⁴ = 722221427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (722221447) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 564480 + ... + 565757.

It is an arithmetic number, because the mean of its divisors is an integer number (88158564).

Almost surely, 2^722221443 is an apocalyptic number.

722221443 is a deficient number, since it is larger than the sum of its proper divisors (335681325).

722221443 is a wasteful number, since it uses less digits than its factorization.

722221443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1130314 (or 1130311 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 722221443 is about 26874.1779967314. The cubic root of 722221443 is about 897.2017793437.

The spelling of 722221443 in words is "seven hundred twenty-two million, two hundred twenty-one thousand, four hundred forty-three".