212022322 has 4 divisors (see below), whose sum is σ = 318033486. Its totient is φ = 106011160.

The previous prime is 212022301. The next prime is 212022323. The reversal of 212022322 is 223220212.

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., 139925241 + 72097081 = 11829^2 + 8491^2 .

It is a super-3 number, since 3×212022322³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212022296 and 212022305.

It is not an unprimeable number, because it can be changed into a prime (212022323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53005579 + ... + 53005582.

Almost surely, 2^212022322 is an apocalyptic number.

212022322 is a deficient number, since it is larger than the sum of its proper divisors (106011164).

212022322 is a wasteful number, since it uses less digits than its factorization.

212022322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106011163.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 212022322 is about 14560.9862990115. The cubic root of 212022322 is about 596.2941227290.

Adding to 212022322 its reverse (223220212), we get a palindrome (435242534).

It can be divided in two parts, 2120 and 22322, that added together give a palindrome (24442).

The spelling of 212022322 in words is "two hundred twelve million, twenty-two thousand, three hundred twenty-two".