221011010041 has 2 divisors, whose sum is σ = 221011010042. Its totient is φ = 221011010040.

The previous prime is 221011010039. The next prime is 221011010069. The reversal of 221011010041 is 140010110122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147439872441 + 73571137600 = 383979^2 + 271240^2 .

It is a cyclic number.

It is not a de Polignac number, because 221011010041 - 2¹ = 221011010039 is a prime.

Together with 221011010039, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (221011010071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505505020 + 110505505021.

It is an arithmetic number, because the mean of its divisors is an integer number (110505505021).

Almost surely, 2^221011010041 is an apocalyptic number.

It is an amenable number.

221011010041 is a deficient number, since it is larger than the sum of its proper divisors (1).

221011010041 is an equidigital number, since it uses as much as digits as its factorization.

221011010041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221011010041 its reverse (140010110122), we get a palindrome (361021120163).

The spelling of 221011010041 in words is "two hundred twenty-one billion, eleven million, ten thousand, forty-one".