221600256099 has 8 divisors (see below), whose sum is σ = 295953776640. Its totient is φ = 147490119816.

The previous prime is 221600256079. The next prime is 221600256121. The reversal of 221600256099 is 990652006122.

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

It is not a de Polignac number, because 221600256099 - 2¹³ = 221600247907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221600256099.

It is not an unprimeable number, because it can be changed into a prime (221600256079) 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, 60843939 + ... + 60847580.

It is an arithmetic number, because the mean of its divisors is an integer number (36994222080).

Almost surely, 2^221600256099 is an apocalyptic number.

221600256099 is a deficient number, since it is larger than the sum of its proper divisors (74353520541).

221600256099 is a wasteful number, since it uses less digits than its factorization.

221600256099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121692129.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 221600256099 in words is "two hundred twenty-one billion, six hundred million, two hundred fifty-six thousand, ninety-nine".