212201224427 has 2 divisors, whose sum is σ = 212201224428. Its totient is φ = 212201224426.

The previous prime is 212201224421. The next prime is 212201224483. The reversal of 212201224427 is 724422102212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212201224427 - 2²⁰ = 212200175851 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212201224427.

It is not a weakly prime, because it can be changed into another prime (212201224421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100612213 + 106100612214.

It is an arithmetic number, because the mean of its divisors is an integer number (106100612214).

Almost surely, 2^212201224427 is an apocalyptic number.

212201224427 is a deficient number, since it is larger than the sum of its proper divisors (1).

212201224427 is an equidigital number, since it uses as much as digits as its factorization.

212201224427 is an evil number, because the sum of its binary digits is even.

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

Adding to 212201224427 its reverse (724422102212), we get a palindrome (936623326639).

The spelling of 212201224427 in words is "two hundred twelve billion, two hundred one million, two hundred twenty-four thousand, four hundred twenty-seven".