212224249 has 2 divisors, whose sum is σ = 212224250. Its totient is φ = 212224248.

The previous prime is 212224231. The next prime is 212224273. The reversal of 212224249 is 942422212.

212224249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196897024 + 15327225 = 14032^2 + 3915^2 .

It is a cyclic number.

It is not a de Polignac number, because 212224249 - 2⁵ = 212224217 is a prime.

It is a super-2 number, since 2×212224249² = 90078263727228002, which contains 22 as substring.

It is equal to p_11717461 and since 212224249 and 11717461 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (212228249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106112124 + 106112125.

It is an arithmetic number, because the mean of its divisors is an integer number (106112125).

Almost surely, 2^212224249 is an apocalyptic number.

It is an amenable number.

212224249 is a deficient number, since it is larger than the sum of its proper divisors (1).

212224249 is an equidigital number, since it uses as much as digits as its factorization.

212224249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 212224249 is about 14567.9184854941. The cubic root of 212224249 is about 596.4833633044.

The spelling of 212224249 in words is "two hundred twelve million, two hundred twenty-four thousand, two hundred forty-nine".