722212 has 12 divisors (see below), whose sum is σ = 1282176. Its totient is φ = 355880.

The previous prime is 722173. The next prime is 722213. The reversal of 722212 is 212227.

It is not an unprimeable number, because it can be changed into a prime (722213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988 + ... + 1555.

It is an arithmetic number, because the mean of its divisors is an integer number (106848).

2⁷²²²¹² is an apocalyptic number.

It is an amenable number.

722212 is a deficient number, since it is larger than the sum of its proper divisors (559964).

722212 is a wasteful number, since it uses less digits than its factorization.

722212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2618 (or 2616 counting only the distinct ones).

The product of its digits is 112, while the sum is 16.

The square root of 722212 is about 849.8305713494. The cubic root of 722212 is about 89.7197869041.

Adding to 722212 its reverse (212227), we get a palindrome (934439).

The spelling of 722212 in words is "seven hundred twenty-two thousand, two hundred twelve", and thus it is an iban number.