2223211 has 2 divisors, whose sum is σ = 2223212.
Its totient is φ = 2223210.
The previous prime is 2223197. The next prime is 2223217. The reversal of 2223211 is 1123222.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-2223211 is a prime.
It is a Chen prime.
2223211 is a lucky number.
It is a junction number, because it is equal to n+sod(n) for n = 2223191 and 2223200.
It is not a weakly prime, because it can be changed into another prime (2223217) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111605 + 1111606.
It is an arithmetic number, because the mean of its divisors is an integer number (1111606).
22223211 is an apocalyptic number.
2223211 is a deficient number, since it is larger than the sum of its proper divisors (1).
2223211 is an equidigital number, since it uses as much as digits as its factorization.
2223211 is an evil number, because the sum of its binary digits is even.
The product of its digits is 48, while the sum is 13.
The square root of 2223211 is about 1491.0435942654.
The cubic root of 2223211 is about 130.5149398397.
Adding to 2223211 its reverse (1123222), we get a palindrome (3346433).
The spelling of 2223211 in words is "two million, two hundred twenty-three thousand, two hundred eleven".