211222214 has 8 divisors (see below), whose sum is σ = 362095248. Its totient is φ = 90523800.

The previous prime is 211222211. The next prime is 211222217. The reversal of 211222214 is 412222112.

It is an interprime number because it is at equal distance from previous prime (211222211) and next prime (211222217).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211222214² = 89229647374123592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222192 and 211222201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211222211) 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 3 ways as a sum of consecutive naturals, for example, 7543637 + ... + 7543664.

It is an arithmetic number, because the mean of its divisors is an integer number (45261906).

Almost surely, 2^211222214 is an apocalyptic number.

211222214 is a deficient number, since it is larger than the sum of its proper divisors (150873034).

211222214 is a wasteful number, since it uses less digits than its factorization.

211222214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15087310.

The product of its digits is 128, while the sum is 17.

The square root of 211222214 is about 14533.4859548561. The cubic root of 211222214 is about 595.5430994436.

Adding to 211222214 its reverse (412222112), we get a palindrome (623444326).

The spelling of 211222214 in words is "two hundred eleven million, two hundred twenty-two thousand, two hundred fourteen".