201011111022101 has 2 divisors, whose sum is σ = 201011111022102. Its totient is φ = 201011111022100.

The previous prime is 201011111022091. The next prime is 201011111022107. The reversal of 201011111022101 is 101220111110102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166857956857201 + 34153154164900 = 12917351^2 + 5844070^2 .

It is a cyclic number.

It is not a de Polignac number, because 201011111022101 - 2³⁸ = 200736233115157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201011111022107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505555511050 + 100505555511051.

It is an arithmetic number, because the mean of its divisors is an integer number (100505555511051).

Almost surely, 2^{201011111022101} is an apocalyptic number.

It is an amenable number.

201011111022101 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011111022101 is an equidigital number, since it uses as much as digits as its factorization.

201011111022101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 201011111022101 its reverse (101220111110102), we get a palindrome (302231222132203).

The spelling of 201011111022101 in words is "two hundred one trillion, eleven billion, one hundred eleven million, twenty-two thousand, one hundred one".