722120212 has 12 divisors (see below), whose sum is σ = 1378593216. Its totient is φ = 328236440.

The previous prime is 722120207. The next prime is 722120219. The reversal of 722120212 is 212021227.

It is a self number, because there is not a number n which added to its sum of digits gives 722120212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722120219) 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 3 ways as a sum of consecutive naturals, for example, 8205868 + ... + 8205955.

It is an arithmetic number, because the mean of its divisors is an integer number (114882768).

Almost surely, 2^722120212 is an apocalyptic number.

It is an amenable number.

722120212 is a deficient number, since it is larger than the sum of its proper divisors (656473004).

722120212 is a wasteful number, since it uses less digits than its factorization.

722120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16411838 (or 16411836 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 722120212 is about 26872.2945056800. The cubic root of 722120212 is about 897.1598582783.

Adding to 722120212 its reverse (212021227), we get a palindrome (934141439).

The spelling of 722120212 in words is "seven hundred twenty-two million, one hundred twenty thousand, two hundred twelve".