106221107 has 4 divisors (see below), whose sum is σ = 110839440. Its totient is φ = 101602776.

The previous prime is 106221103. The next prime is 106221121. The reversal of 106221107 is 701122601.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 106221107 - 2² = 106221103 is a prime.

It is a super-2 number, since 2×106221107² = 22565847144610898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106221103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309132 + ... + 2309177.

It is an arithmetic number, because the mean of its divisors is an integer number (27709860).

Almost surely, 2^106221107 is an apocalyptic number.

106221107 is a deficient number, since it is larger than the sum of its proper divisors (4618333).

106221107 is an equidigital number, since it uses as much as digits as its factorization.

106221107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618332.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 106221107 is about 10306.3624523883. The cubic root of 106221107 is about 473.5911822754.

Adding to 106221107 its reverse (701122601), we get a palindrome (807343708).

The spelling of 106221107 in words is "one hundred six million, two hundred twenty-one thousand, one hundred seven".