220947106 has 16 divisors (see below), whose sum is σ = 347224320. Its totient is φ = 105312240.

The previous prime is 220947071. The next prime is 220947119. The reversal of 220947106 is 601749022.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

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, 22441 + ... + 30748.

It is an arithmetic number, because the mean of its divisors is an integer number (21701520).

Almost surely, 2^220947106 is an apocalyptic number.

220947106 is a deficient number, since it is larger than the sum of its proper divisors (126277214).

220947106 is a wasteful number, since it uses less digits than its factorization.

220947106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53289.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 220947106 is about 14864.2896231202. The cubic root of 220947106 is about 604.5461213423.

The spelling of 220947106 in words is "two hundred twenty million, nine hundred forty-seven thousand, one hundred six".