220473811 has 2 divisors, whose sum is σ = 220473812. Its totient is φ = 220473810.

The previous prime is 220473793. The next prime is 220473823. The reversal of 220473811 is 118374022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220473811 - 2⁵ = 220473779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220473811.

It is not a weakly prime, because it can be changed into another prime (220473611) 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 as a sum of consecutive naturals, namely, 110236905 + 110236906.

It is an arithmetic number, because the mean of its divisors is an integer number (110236906).

Almost surely, 2^220473811 is an apocalyptic number.

220473811 is a deficient number, since it is larger than the sum of its proper divisors (1).

220473811 is an equidigital number, since it uses as much as digits as its factorization.

220473811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 220473811 is about 14848.3605492324. The cubic root of 220473811 is about 604.1141428288.

The spelling of 220473811 in words is "two hundred twenty million, four hundred seventy-three thousand, eight hundred eleven".