201210002211121 has 2 divisors, whose sum is σ = 201210002211122. Its totient is φ = 201210002211120.

The previous prime is 201210002211073. The next prime is 201210002211133. The reversal of 201210002211121 is 121112200012102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190681852737600 + 10528149473521 = 13808760^2 + 3244711^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201210002211121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201210002211095 and 201210002211104.

It is not a weakly prime, because it can be changed into another prime (201210002251121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100605001105560 + 100605001105561.

It is an arithmetic number, because the mean of its divisors is an integer number (100605001105561).

Almost surely, 2^{201210002211121} is an apocalyptic number.

It is an amenable number.

201210002211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

201210002211121 is an equidigital number, since it uses as much as digits as its factorization.

201210002211121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201210002211121 its reverse (121112200012102), we get a palindrome (322322202223223).

The spelling of 201210002211121 in words is "two hundred one trillion, two hundred ten billion, two million, two hundred eleven thousand, one hundred twenty-one".