20110201210247 has 2 divisors, whose sum is σ = 20110201210248. Its totient is φ = 20110201210246.

The previous prime is 20110201210159. The next prime is 20110201210261. The reversal of 20110201210247 is 74201210201102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20110201210247 - 2⁸ = 20110201209991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20110201210277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055100605123 + 10055100605124.

It is an arithmetic number, because the mean of its divisors is an integer number (10055100605124).

Almost surely, 2^{20110201210247} is an apocalyptic number.

20110201210247 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110201210247 is an equidigital number, since it uses as much as digits as its factorization.

20110201210247 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 23.

Adding to 20110201210247 its reverse (74201210201102), we get a palindrome (94311411411349).

The spelling of 20110201210247 in words is "twenty trillion, one hundred ten billion, two hundred one million, two hundred ten thousand, two hundred forty-seven".