101163221 has 2 divisors, whose sum is σ = 101163222. Its totient is φ = 101163220.

The previous prime is 101163211. The next prime is 101163289. The reversal of 101163221 is 122361101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100500625 + 662596 = 10025^2 + 814^2 .

It is a cyclic number.

It is not a de Polignac number, because 101163221 - 2¹⁰ = 101162197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101163221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101163211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50581610 + 50581611.

It is an arithmetic number, because the mean of its divisors is an integer number (50581611).

Almost surely, 2^101163221 is an apocalyptic number.

It is an amenable number.

101163221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101163221 is an equidigital number, since it uses as much as digits as its factorization.

101163221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 101163221 is about 10057.9928912283. The cubic root of 101163221 is about 465.9516810283.

The spelling of 101163221 in words is "one hundred one million, one hundred sixty-three thousand, two hundred twenty-one".