1320211 has 2 divisors, whose sum is σ = 1320212. Its totient is φ = 1320210.

The previous prime is 1320199. The next prime is 1320247. The reversal of 1320211 is 1120231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320211 - 2¹³ = 1312019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660105 + 660106.

It is an arithmetic number, because the mean of its divisors is an integer number (660106).

2^1320211 is an apocalyptic number.

1320211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320211 is an equidigital number, since it uses as much as digits as its factorization.

1320211 is an evil number, because the sum of its binary digits is even.

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

The square root of 1320211 is about 1149.0043516019. The cubic root of 1320211 is about 109.7019756574.

Subtracting from 1320211 its sum of digits (10), we obtain a square (1320201 = 1149²).

Adding to 1320211 its reverse (1120231), we get a palindrome (2440442).

The spelling of 1320211 in words is "one million, three hundred twenty thousand, two hundred eleven".