212899223 has 2 divisors, whose sum is σ = 212899224. Its totient is φ = 212899222.

The previous prime is 212899151. The next prime is 212899231. The reversal of 212899223 is 322998212.

212899223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212899223 - 2¹² = 212895127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212899273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106449611 + 106449612.

It is an arithmetic number, because the mean of its divisors is an integer number (106449612).

Almost surely, 2^212899223 is an apocalyptic number.

212899223 is a deficient number, since it is larger than the sum of its proper divisors (1).

212899223 is an equidigital number, since it uses as much as digits as its factorization.

212899223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 212899223 is about 14591.0665477202. The cubic root of 212899223 is about 597.1150609622.

The spelling of 212899223 in words is "two hundred twelve million, eight hundred ninety-nine thousand, two hundred twenty-three".