101113232221 has 2 divisors, whose sum is σ = 101113232222. Its totient is φ = 101113232220.

The previous prime is 101113232189. The next prime is 101113232243. The reversal of 101113232221 is 122232311101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83454543225 + 17658688996 = 288885^2 + 132886^2 .

It is a cyclic number.

It is not a de Polignac number, because 101113232221 - 2⁵ = 101113232189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101113232291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50556616110 + 50556616111.

It is an arithmetic number, because the mean of its divisors is an integer number (50556616111).

Almost surely, 2^101113232221 is an apocalyptic number.

It is an amenable number.

101113232221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101113232221 is an equidigital number, since it uses as much as digits as its factorization.

101113232221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101113232221 its reverse (122232311101), we get a palindrome (223345543322).

The spelling of 101113232221 in words is "one hundred one billion, one hundred thirteen million, two hundred thirty-two thousand, two hundred twenty-one".