106221165 has 8 divisors (see below), whose sum is σ = 169953888. Its totient is φ = 56651280.

The previous prime is 106221163. The next prime is 106221173. The reversal of 106221165 is 561122601.

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

It is not a de Polignac number, because 106221165 - 2¹ = 106221163 is a prime.

It is a super-2 number, since 2×106221165² = 22565871787914450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106221161) 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, 3540691 + ... + 3540720.

It is an arithmetic number, because the mean of its divisors is an integer number (21244236).

Almost surely, 2^106221165 is an apocalyptic number.

106221165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106221165 is a deficient number, since it is larger than the sum of its proper divisors (63732723).

106221165 is an equidigital number, since it uses as much as digits as its factorization.

106221165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081419.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 106221165 is about 10306.3652661838. The cubic root of 106221165 is about 473.5912684738.

Adding to 106221165 its reverse (561122601), we get a palindrome (667343766).

The spelling of 106221165 in words is "one hundred six million, two hundred twenty-one thousand, one hundred sixty-five".