411201202121 has 2 divisors, whose sum is σ = 411201202122. Its totient is φ = 411201202120.

The previous prime is 411201202103. The next prime is 411201202141. The reversal of 411201202121 is 121202102114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 397737080896 + 13464121225 = 630664^2 + 116035^2 .

It is a cyclic number.

It is not a de Polignac number, because 411201202121 - 2⁶ = 411201202057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 411201202121.

It is not a weakly prime, because it can be changed into another prime (411201202141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205600601060 + 205600601061.

It is an arithmetic number, because the mean of its divisors is an integer number (205600601061).

Almost surely, 2^411201202121 is an apocalyptic number.

It is an amenable number.

411201202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

411201202121 is an equidigital number, since it uses as much as digits as its factorization.

411201202121 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 411201202121 its reverse (121202102114), we get a palindrome (532403304235).

The spelling of 411201202121 in words is "four hundred eleven billion, two hundred one million, two hundred two thousand, one hundred twenty-one".