220999963 has 8 divisors (see below), whose sum is σ = 238306320. Its totient is φ = 204261120.

The previous prime is 220999957. The next prime is 220999973. The reversal of 220999963 is 369999022.

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

It is a cyclic number.

It is not a de Polignac number, because 220999963 - 2⁵ = 220999931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220999903) 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, 141070 + ... + 142627.

It is an arithmetic number, because the mean of its divisors is an integer number (29788290).

Almost surely, 2^220999963 is an apocalyptic number.

220999963 is a deficient number, since it is larger than the sum of its proper divisors (17306357).

220999963 is a wasteful number, since it uses less digits than its factorization.

220999963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283757.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 220999963 is about 14866.0675028738. The cubic root of 220999963 is about 604.5943258607.

The spelling of 220999963 in words is "two hundred twenty million, nine hundred ninety-nine thousand, nine hundred sixty-three".