106650221 has 8 divisors (see below), whose sum is σ = 107342400. Its totient is φ = 105960960.

The previous prime is 106650179. The next prime is 106650223. The reversal of 106650221 is 122056601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106650221 is a prime.

It is a super-2 number, since 2×106650221² = 22748539278697682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106650223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166061 + ... + 166701.

It is an arithmetic number, because the mean of its divisors is an integer number (13417800).

Almost surely, 2^106650221 is an apocalyptic number.

It is an amenable number.

106650221 is a deficient number, since it is larger than the sum of its proper divisors (692179).

106650221 is an equidigital number, since it uses as much as digits as its factorization.

106650221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 106650221 is about 10327.1593867820. The cubic root of 106650221 is about 474.2280662286.

The spelling of 106650221 in words is "one hundred six million, six hundred fifty thousand, two hundred twenty-one".