220421683 has 2 divisors, whose sum is σ = 220421684. Its totient is φ = 220421682.

The previous prime is 220421671. The next prime is 220421713. The reversal of 220421683 is 386124022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220421683 - 2⁵ = 220421651 is a prime.

It is not a weakly prime, because it can be changed into another prime (220421183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110210841 + 110210842.

It is an arithmetic number, because the mean of its divisors is an integer number (110210842).

Almost surely, 2^220421683 is an apocalyptic number.

220421683 is a deficient number, since it is larger than the sum of its proper divisors (1).

220421683 is an equidigital number, since it uses as much as digits as its factorization.

220421683 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 220421683 is about 14846.6051001567. The cubic root of 220421683 is about 604.0665275828.

The spelling of 220421683 in words is "two hundred twenty million, four hundred twenty-one thousand, six hundred eighty-three".