101450221 has 2 divisors, whose sum is σ = 101450222. Its totient is φ = 101450220.

The previous prime is 101450213. The next prime is 101450227. The reversal of 101450221 is 122054101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53494596 + 47955625 = 7314^2 + 6925^2 .

It is a cyclic number.

It is not a de Polignac number, because 101450221 - 2³ = 101450213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101450195 and 101450204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101450227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50725110 + 50725111.

It is an arithmetic number, because the mean of its divisors is an integer number (50725111).

Almost surely, 2^101450221 is an apocalyptic number.

It is an amenable number.

101450221 is a deficient number, since it is larger than the sum of its proper divisors (1).

101450221 is an equidigital number, since it uses as much as digits as its factorization.

101450221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 101450221 is about 10072.2500465388. The cubic root of 101450221 is about 466.3918998742.

The spelling of 101450221 in words is "one hundred one million, four hundred fifty thousand, two hundred twenty-one".