212122322 has 4 divisors (see below), whose sum is σ = 318183486. Its totient is φ = 106061160.

The previous prime is 212122297. The next prime is 212122373. The reversal of 212122322 is 223221212.

212122322 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 194574601 + 17547721 = 13949^2 + 4189^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212122322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53030579 + ... + 53030582.

Almost surely, 2^212122322 is an apocalyptic number.

212122322 is a deficient number, since it is larger than the sum of its proper divisors (106061164).

212122322 is a wasteful number, since it uses less digits than its factorization.

212122322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106061163.

The product of its digits is 192, while the sum is 17.

The square root of 212122322 is about 14564.4197275415. The cubic root of 212122322 is about 596.3878550610.

Adding to 212122322 its reverse (223221212), we get a palindrome (435343534).

The spelling of 212122322 in words is "two hundred twelve million, one hundred twenty-two thousand, three hundred twenty-two".