212222410427 has 2 divisors, whose sum is σ = 212222410428. Its totient is φ = 212222410426.

The previous prime is 212222410381. The next prime is 212222410447. The reversal of 212222410427 is 724014222212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212222410427 - 2⁶ = 212222410363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212222410427.

It is not a weakly prime, because it can be changed into another prime (212222410447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111205213 + 106111205214.

It is an arithmetic number, because the mean of its divisors is an integer number (106111205214).

Almost surely, 2^212222410427 is an apocalyptic number.

212222410427 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222410427 is an equidigital number, since it uses as much as digits as its factorization.

212222410427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 29.

Adding to 212222410427 its reverse (724014222212), we get a palindrome (936236632639).

The spelling of 212222410427 in words is "two hundred twelve billion, two hundred twenty-two million, four hundred ten thousand, four hundred twenty-seven".