212223097 has 2 divisors, whose sum is σ = 212223098. Its totient is φ = 212223096.

The previous prime is 212223091. The next prime is 212223133. The reversal of 212223097 is 790322212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163558521 + 48664576 = 12789^2 + 6976^2 .

It is a cyclic number.

It is not a de Polignac number, because 212223097 - 2¹¹ = 212221049 is a prime.

It is not a weakly prime, because it can be changed into another prime (212223091) 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, 106111548 + 106111549.

It is an arithmetic number, because the mean of its divisors is an integer number (106111549).

Almost surely, 2^212223097 is an apocalyptic number.

It is an amenable number.

212223097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212223097 is an equidigital number, since it uses as much as digits as its factorization.

212223097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 212223097 is about 14567.8789465042. The cubic root of 212223097 is about 596.4822840214.

The spelling of 212223097 in words is "two hundred twelve million, two hundred twenty-three thousand, ninety-seven".