221650113 has 8 divisors (see below), whose sum is σ = 295623328. Its totient is φ = 147721824.

The previous prime is 221650111. The next prime is 221650127. The reversal of 221650113 is 311056122.

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

It is not a de Polignac number, because 221650113 - 2¹ = 221650111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221650113.

It is not an unprimeable number, because it can be changed into a prime (221650111) 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 in 7 ways as a sum of consecutive naturals, for example, 2781 + ... + 21237.

It is an arithmetic number, because the mean of its divisors is an integer number (36952916).

Almost surely, 2^221650113 is an apocalyptic number.

It is an amenable number.

221650113 is a deficient number, since it is larger than the sum of its proper divisors (73973215).

221650113 is a wasteful number, since it uses less digits than its factorization.

221650113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22463.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 221650113 is about 14887.9183568422. The cubic root of 221650113 is about 605.1866218439.

The spelling of 221650113 in words is "two hundred twenty-one million, six hundred fifty thousand, one hundred thirteen".