211213102221241 has 2 divisors, whose sum is σ = 211213102221242. Its totient is φ = 211213102221240.

The previous prime is 211213102221211. The next prime is 211213102221257. The reversal of 211213102221241 is 142122201312112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113266531155625 + 97946571065616 = 10642675^2 + 9896796^2 .

It is a cyclic number.

It is not a de Polignac number, because 211213102221241 - 2¹¹ = 211213102219193 is a prime.

It is a super-2 number, since 2×211213102221241² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211213102221211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105606551110620 + 105606551110621.

It is an arithmetic number, because the mean of its divisors is an integer number (105606551110621).

Almost surely, 2^{211213102221241} is an apocalyptic number.

It is an amenable number.

211213102221241 is a deficient number, since it is larger than the sum of its proper divisors (1).

211213102221241 is an equidigital number, since it uses as much as digits as its factorization.

211213102221241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 211213102221241 its reverse (142122201312112), we get a palindrome (353335303533353).

The spelling of 211213102221241 in words is "two hundred eleven trillion, two hundred thirteen billion, one hundred two million, two hundred twenty-one thousand, two hundred forty-one".