211121020121041 has 2 divisors, whose sum is σ = 211121020121042. Its totient is φ = 211121020121040.

The previous prime is 211121020121021. The next prime is 211121020121113. The reversal of 211121020121041 is 140121020121112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151597557750016 + 59523462371025 = 12312496^2 + 7715145^2 .

It is a cyclic number.

It is not a de Polignac number, because 211121020121041 - 2⁴⁵ = 175936648032209 is a prime.

It is not a weakly prime, because it can be changed into another prime (211121020121021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105560510060520 + 105560510060521.

It is an arithmetic number, because the mean of its divisors is an integer number (105560510060521).

Almost surely, 2^{211121020121041} is an apocalyptic number.

It is an amenable number.

211121020121041 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121020121041 is an equidigital number, since it uses as much as digits as its factorization.

211121020121041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211121020121041 its reverse (140121020121112), we get a palindrome (351242040242153).

The spelling of 211121020121041 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty million, one hundred twenty-one thousand, forty-one".