201220427711 has 2 divisors, whose sum is σ = 201220427712. Its totient is φ = 201220427710.

The previous prime is 201220427693. The next prime is 201220427809. The reversal of 201220427711 is 117724022102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201220427711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201220421711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610213855 + 100610213856.

It is an arithmetic number, because the mean of its divisors is an integer number (100610213856).

Almost surely, 2^201220427711 is an apocalyptic number.

201220427711 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220427711 is an equidigital number, since it uses as much as digits as its factorization.

201220427711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3136, while the sum is 29.

Adding to 201220427711 its reverse (117724022102), we get a palindrome (318944449813).

The spelling of 201220427711 in words is "two hundred one billion, two hundred twenty million, four hundred twenty-seven thousand, seven hundred eleven".