72213322 has 8 divisors (see below), whose sum is σ = 111814272. Its totient is φ = 34941900.

The previous prime is 72213301. The next prime is 72213329. The reversal of 72213322 is 22331227.

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 = 72213293 and 72213302.

It is not an unprimeable number, because it can be changed into a prime (72213329) 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, 582304 + ... + 582427.

It is an arithmetic number, because the mean of its divisors is an integer number (13976784).

Almost surely, 2^72213322 is an apocalyptic number.

72213322 is a deficient number, since it is larger than the sum of its proper divisors (39600950).

72213322 is a wasteful number, since it uses less digits than its factorization.

72213322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164764.

The product of its digits is 1008, while the sum is 22.

The square root of 72213322 is about 8497.8421966991. The cubic root of 72213322 is about 416.4272184390.

Adding to 72213322 its reverse (22331227), we get a palindrome (94544549).

The spelling of 72213322 in words is "seventy-two million, two hundred thirteen thousand, three hundred twenty-two".