201111120229 has 2 divisors, whose sum is σ = 201111120230. Its totient is φ = 201111120228.

The previous prime is 201111120211. The next prime is 201111120233. The reversal of 201111120229 is 922021111102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200910132900 + 200987329 = 448230^2 + 14177^2 .

It is a cyclic number.

It is not a de Polignac number, because 201111120229 - 2¹¹ = 201111118181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201111120239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555560114 + 100555560115.

It is an arithmetic number, because the mean of its divisors is an integer number (100555560115).

Almost surely, 2^201111120229 is an apocalyptic number.

It is an amenable number.

201111120229 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111120229 is an equidigital number, since it uses as much as digits as its factorization.

201111120229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 201111120229 in words is "two hundred one billion, one hundred eleven million, one hundred twenty thousand, two hundred twenty-nine".