221011112110241 has 2 divisors, whose sum is σ = 221011112110242. Its totient is φ = 221011112110240.

The previous prime is 221011112110211. The next prime is 221011112110247. The reversal of 221011112110241 is 142011211110122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215123675739025 + 5887436371216 = 14667095^2 + 2426404^2 .

It is a cyclic number.

It is not a de Polignac number, because 221011112110241 - 2³⁸ = 220736234203297 is a prime.

It is not a weakly prime, because it can be changed into another prime (221011112110247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110505556055120 + 110505556055121.

It is an arithmetic number, because the mean of its divisors is an integer number (110505556055121).

Almost surely, 2^{221011112110241} is an apocalyptic number.

It is an amenable number.

221011112110241 is a deficient number, since it is larger than the sum of its proper divisors (1).

221011112110241 is an equidigital number, since it uses as much as digits as its factorization.

221011112110241 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 20.

Adding to 221011112110241 its reverse (142011211110122), we get a palindrome (363022323220363).

The spelling of 221011112110241 in words is "two hundred twenty-one trillion, eleven billion, one hundred twelve million, one hundred ten thousand, two hundred forty-one".