22810213 has 2 divisors, whose sum is σ = 22810214. Its totient is φ = 22810212.

The previous prime is 22810199. The next prime is 22810219. The reversal of 22810213 is 31201822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20493729 + 2316484 = 4527^2 + 1522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22810213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22810219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11405106 + 11405107.

It is an arithmetic number, because the mean of its divisors is an integer number (11405107).

Almost surely, 2^22810213 is an apocalyptic number.

It is an amenable number.

22810213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22810213 is an equidigital number, since it uses as much as digits as its factorization.

22810213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 22810213 is about 4776.0038735328. The cubic root of 22810213 is about 283.6023206376.

The spelling of 22810213 in words is "twenty-two million, eight hundred ten thousand, two hundred thirteen".