221200107 has 8 divisors (see below), whose sum is σ = 312282576. Its totient is φ = 138792192.

The previous prime is 221200093. The next prime is 221200121. The reversal of 221200107 is 701002122.

It is an interprime number because it is at equal distance from previous prime (221200093) and next prime (221200121).

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

It is not a de Polignac number, because 221200107 - 2²³ = 212811499 is a prime.

It is a super-2 number, since 2×221200107² = 97858974673622898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221200607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2168578 + ... + 2168679.

It is an arithmetic number, because the mean of its divisors is an integer number (39035322).

Almost surely, 2^221200107 is an apocalyptic number.

221200107 is a deficient number, since it is larger than the sum of its proper divisors (91082469).

221200107 is a wasteful number, since it uses less digits than its factorization.

221200107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4337277.

The product of its (nonzero) digits is 56, while the sum is 15.

The square root of 221200107 is about 14872.7975512343. The cubic root of 221200107 is about 604.7767835327.

Adding to 221200107 its reverse (701002122), we get a palindrome (922202229).

The spelling of 221200107 in words is "two hundred twenty-one million, two hundred thousand, one hundred seven".