211222232 has 32 divisors (see below), whose sum is σ = 427518000. Its totient is φ = 97256064.

The previous prime is 211222223. The next prime is 211222237. The reversal of 211222232 is 232222112.

It is a super-2 number, since 2×211222232² = 89229662582123648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211222232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46394 + ... + 50742.

Almost surely, 2^211222232 is an apocalyptic number.

It is an amenable number.

211222232 is an abundant number, since it is smaller than the sum of its proper divisors (216295768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211222232 is a wasteful number, since it uses less digits than its factorization.

211222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835 (or 4831 counting only the distinct ones).

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

The square root of 211222232 is about 14533.4865741157. The cubic root of 211222232 is about 595.5431163607.

Adding to 211222232 its reverse (232222112), we get a palindrome (443444344).

The spelling of 211222232 in words is "two hundred eleven million, two hundred twenty-two thousand, two hundred thirty-two".