212022227 has 2 divisors, whose sum is σ = 212022228. Its totient is φ = 212022226.

The previous prime is 212022191. The next prime is 212022229. The reversal of 212022227 is 722220212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212022227 - 2¹⁰ = 212021203 is a prime.

Together with 212022229, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212022199 and 212022208.

It is not a weakly prime, because it can be changed into another prime (212022229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106011113 + 106011114.

It is an arithmetic number, because the mean of its divisors is an integer number (106011114).

Almost surely, 2^212022227 is an apocalyptic number.

212022227 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022227 is an equidigital number, since it uses as much as digits as its factorization.

212022227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 212022227 is about 14560.9830368695. The cubic root of 212022227 is about 596.2940336693.

Adding to 212022227 its reverse (722220212), we get a palindrome (934242439).

The spelling of 212022227 in words is "two hundred twelve million, twenty-two thousand, two hundred twenty-seven".