101231221241 has 2 divisors, whose sum is σ = 101231221242. Its totient is φ = 101231221240.

The previous prime is 101231221211. The next prime is 101231221283. The reversal of 101231221241 is 142122132101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98709072400 + 2522148841 = 314180^2 + 50221^2 .

It is a cyclic number.

It is not a de Polignac number, because 101231221241 - 2²² = 101227026937 is a prime.

It is not a weakly prime, because it can be changed into another prime (101231221211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615610620 + 50615610621.

It is an arithmetic number, because the mean of its divisors is an integer number (50615610621).

Almost surely, 2^101231221241 is an apocalyptic number.

It is an amenable number.

101231221241 is a deficient number, since it is larger than the sum of its proper divisors (1).

101231221241 is an equidigital number, since it uses as much as digits as its factorization.

101231221241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 101231221241 its reverse (142122132101), we get a palindrome (243353353342).

The spelling of 101231221241 in words is "one hundred one billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred forty-one".