22700213 has 2 divisors, whose sum is σ = 22700214. Its totient is φ = 22700212.

The previous prime is 22700207. The next prime is 22700233. The reversal of 22700213 is 31200722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13712209 + 8988004 = 3703^2 + 2998^2 .

It is a cyclic number.

It is not a de Polignac number, because 22700213 - 2¹² = 22696117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22700191 and 22700200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22700233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11350106 + 11350107.

It is an arithmetic number, because the mean of its divisors is an integer number (11350107).

Almost surely, 2^22700213 is an apocalyptic number.

It is an amenable number.

22700213 is a deficient number, since it is larger than the sum of its proper divisors (1).

22700213 is an equidigital number, since it uses as much as digits as its factorization.

22700213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 22700213 is about 4764.4740528205. The cubic root of 22700213 is about 283.1457044572.

Adding to 22700213 its reverse (31200722), we get a palindrome (53900935).

The spelling of 22700213 in words is "twenty-two million, seven hundred thousand, two hundred thirteen".