201012220102121 has 2 divisors, whose sum is σ = 201012220102122. Its totient is φ = 201012220102120.

The previous prime is 201012220102079. The next prime is 201012220102163. The reversal of 201012220102121 is 121201022210102.

It is a balanced prime because it is at equal distance from previous prime (201012220102079) and next prime (201012220102163).

It can be written as a sum of positive squares in only one way, i.e., 152762678478400 + 48249541623721 = 12359720^2 + 6946189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201012220102121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201012220102121.

It is not a weakly prime, because it can be changed into another prime (201012220102021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100506110051060 + 100506110051061.

It is an arithmetic number, because the mean of its divisors is an integer number (100506110051061).

Almost surely, 2^{201012220102121} is an apocalyptic number.

It is an amenable number.

201012220102121 is a deficient number, since it is larger than the sum of its proper divisors (1).

201012220102121 is an equidigital number, since it uses as much as digits as its factorization.

201012220102121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201012220102121 its reverse (121201022210102), we get a palindrome (322213242312223).

The spelling of 201012220102121 in words is "two hundred one trillion, twelve billion, two hundred twenty million, one hundred two thousand, one hundred twenty-one".