101442217 has 2 divisors, whose sum is σ = 101442218. Its totient is φ = 101442216.

The previous prime is 101442161. The next prime is 101442239. The reversal of 101442217 is 712244101.

It is an a-pointer prime, because the next prime (101442239) can be obtained adding 101442217 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68906601 + 32535616 = 8301^2 + 5704^2 .

It is a cyclic number.

It is not a de Polignac number, because 101442217 - 2¹⁵ = 101409449 is a prime.

It is not a weakly prime, because it can be changed into another prime (101442277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50721108 + 50721109.

It is an arithmetic number, because the mean of its divisors is an integer number (50721109).

Almost surely, 2^101442217 is an apocalyptic number.

It is an amenable number.

101442217 is a deficient number, since it is larger than the sum of its proper divisors (1).

101442217 is an equidigital number, since it uses as much as digits as its factorization.

101442217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 101442217 is about 10071.8527094075. The cubic root of 101442217 is about 466.3796340920.

Adding to 101442217 its reverse (712244101), we get a palindrome (813686318).

The spelling of 101442217 in words is "one hundred one million, four hundred forty-two thousand, two hundred seventeen".