201012111101 has 2 divisors, whose sum is σ = 201012111102. Its totient is φ = 201012111100.

The previous prime is 201012111043. The next prime is 201012111133. The reversal of 201012111101 is 101111210102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200914615225 + 97495876 = 448235^2 + 9874^2 .

It is a cyclic number.

It is not a de Polignac number, because 201012111101 - 2⁶ = 201012111037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201012111701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506055550 + 100506055551.

It is an arithmetic number, because the mean of its divisors is an integer number (100506055551).

Almost surely, 2^201012111101 is an apocalyptic number.

It is an amenable number.

201012111101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012111101 is an equidigital number, since it uses as much as digits as its factorization.

201012111101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 201012111101 its reverse (101111210102), we get a palindrome (302123321203).

Subtracting from 201012111101 its reverse (101111210102), we obtain a palindrome (99900900999).

The spelling of 201012111101 in words is "two hundred one billion, twelve million, one hundred eleven thousand, one hundred one".