2102213 has 2 divisors, whose sum is σ = 2102214. Its totient is φ = 2102212.

The previous prime is 2102207. The next prime is 2102249. The reversal of 2102213 is 3122012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2024929 + 77284 = 1423^2 + 278^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102213 - 2¹⁰ = 2101189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102194 and 2102203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051106 + 1051107.

It is an arithmetic number, because the mean of its divisors is an integer number (1051107).

2^2102213 is an apocalyptic number.

It is an amenable number.

2102213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102213 is an equidigital number, since it uses as much as digits as its factorization.

2102213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2102213 is about 1449.9010311052. The cubic root of 2102213 is about 128.1028835909.

Adding to 2102213 its reverse (3122012), we get a palindrome (5224225).

The spelling of 2102213 in words is "two million, one hundred two thousand, two hundred thirteen".