4012213 has 2 divisors, whose sum is σ = 4012214. Its totient is φ = 4012212.

The previous prime is 4012207. The next prime is 4012241. The reversal of 4012213 is 3122104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3908529 + 103684 = 1977^2 + 322^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012213 - 2⁹ = 4011701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4012193 and 4012202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4012273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006106 + 2006107.

It is an arithmetic number, because the mean of its divisors is an integer number (2006107).

Almost surely, 2^4012213 is an apocalyptic number.

It is an amenable number.

4012213 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012213 is an equidigital number, since it uses as much as digits as its factorization.

4012213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4012213 is about 2003.0509229673. The cubic root of 4012213 is about 158.9014987918.

Adding to 4012213 its reverse (3122104), we get a palindrome (7134317).

It can be divided in two parts, 4012 and 213, that added together give a square (4225 = 65²).

The spelling of 4012213 in words is "four million, twelve thousand, two hundred thirteen".