1230211 has 4 divisors (see below), whose sum is σ = 1233432. Its totient is φ = 1226992.

The previous prime is 1230199. The next prime is 1230223. The reversal of 1230211 is 1120321.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1230199) and next prime (1230223).

It is a cyclic number.

It is not a de Polignac number, because 1230211 - 2¹¹ = 1228163 is a prime.

It is a Duffinian number.

1230211 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1230241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946 + ... + 1831.

It is an arithmetic number, because the mean of its divisors is an integer number (308358).

2^1230211 is an apocalyptic number.

1230211 is a deficient number, since it is larger than the sum of its proper divisors (3221).

1230211 is an equidigital number, since it uses as much as digits as its factorization.

1230211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1230211 is about 1109.1487727082. The cubic root of 1230211 is about 107.1502532884.

Adding to 1230211 its reverse (1120321), we get a palindrome (2350532).

It can be divided in two parts, 1230 and 211, that added together give a palindrome (1441).

The spelling of 1230211 in words is "one million, two hundred thirty thousand, two hundred eleven".