212040322 has 16 divisors (see below), whose sum is σ = 343969920. Its totient is φ = 97452432.

The previous prime is 212040313. The next prime is 212040329. The reversal of 212040322 is 223040212.

It is a super-2 number, since 2×212040322² = 89922196307727368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212040296 and 212040305.

It is not an unprimeable number, because it can be changed into a prime (212040329) 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 7 ways as a sum of consecutive naturals, for example, 10848 + ... + 23275.

It is an arithmetic number, because the mean of its divisors is an integer number (21498120).

Almost surely, 2^212040322 is an apocalyptic number.

212040322 is a deficient number, since it is larger than the sum of its proper divisors (131929598).

212040322 is a wasteful number, since it uses less digits than its factorization.

212040322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34377.

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

The square root of 212040322 is about 14561.6043758921. The cubic root of 212040322 is about 596.3109967235.

Adding to 212040322 its reverse (223040212), we get a palindrome (435080534).

The spelling of 212040322 in words is "two hundred twelve million, forty thousand, three hundred twenty-two".