212423227 has 2 divisors, whose sum is σ = 212423228. Its totient is φ = 212423226.

The previous prime is 212423219. The next prime is 212423243. The reversal of 212423227 is 722324212.

212423227 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 is a cyclic number.

It is not a de Polignac number, because 212423227 - 2³ = 212423219 is a prime.

It is not a weakly prime, because it can be changed into another prime (212423207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106211613 + 106211614.

It is an arithmetic number, because the mean of its divisors is an integer number (106211614).

Almost surely, 2^212423227 is an apocalyptic number.

212423227 is a deficient number, since it is larger than the sum of its proper divisors (1).

212423227 is an equidigital number, since it uses as much as digits as its factorization.

212423227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 25.

The square root of 212423227 is about 14574.7462070528. The cubic root of 212423227 is about 596.6697227701.

Adding to 212423227 its reverse (722324212), we get a palindrome (934747439).

The spelling of 212423227 in words is "two hundred twelve million, four hundred twenty-three thousand, two hundred twenty-seven".