211222313 has 8 divisors (see below), whose sum is σ = 218211840. Its totient is φ = 204243840.

The previous prime is 211222309. The next prime is 211222337. The reversal of 211222313 is 313222112.

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

It is a cyclic number.

It is not a de Polignac number, because 211222313 - 2² = 211222309 is a prime.

It is a super-2 number, since 2×211222313² = 89229731018139938, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211222291 and 211222300.

It is not an unprimeable number, because it can be changed into a prime (211222303) 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, 56756 + ... + 60362.

It is an arithmetic number, because the mean of its divisors is an integer number (27276480).

Almost surely, 2^211222313 is an apocalyptic number.

It is an amenable number.

211222313 is a deficient number, since it is larger than the sum of its proper divisors (6989527).

211222313 is a wasteful number, since it uses less digits than its factorization.

211222313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5527.

The product of its digits is 144, while the sum is 17.

The square root of 211222313 is about 14533.4893607833. The cubic root of 211222313 is about 595.5431924874.

Adding to 211222313 its reverse (313222112), we get a palindrome (524444425).

The spelling of 211222313 in words is "two hundred eleven million, two hundred twenty-two thousand, three hundred thirteen".