201220222444427 has 2 divisors, whose sum is σ = 201220222444428. Its totient is φ = 201220222444426.

The previous prime is 201220222444399. The next prime is 201220222444447. The reversal of 201220222444427 is 724444222022102.

201220222444427 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 201220222444427 - 2⁶ = 201220222444363 is a prime.

It is not a weakly prime, because it can be changed into another prime (201220222444447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610111222213 + 100610111222214.

It is an arithmetic number, because the mean of its divisors is an integer number (100610111222214).

Almost surely, 2^{201220222444427} is an apocalyptic number.

201220222444427 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220222444427 is an equidigital number, since it uses as much as digits as its factorization.

201220222444427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 229376, while the sum is 38.

Adding to 201220222444427 its reverse (724444222022102), we get a palindrome (925664444466529).

The spelling of 201220222444427 in words is "two hundred one trillion, two hundred twenty billion, two hundred twenty-two million, four hundred forty-four thousand, four hundred twenty-seven".