220541999 has 2 divisors, whose sum is σ = 220542000. Its totient is φ = 220541998.

The previous prime is 220541953. The next prime is 220542011. The reversal of 220541999 is 999145022.

It is a happy number.

220541999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220541999 - 2¹⁶ = 220476463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220541929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110270999 + 110271000.

It is an arithmetic number, because the mean of its divisors is an integer number (110271000).

Almost surely, 2^220541999 is an apocalyptic number.

220541999 is a deficient number, since it is larger than the sum of its proper divisors (1).

220541999 is an equidigital number, since it uses as much as digits as its factorization.

220541999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 220541999 is about 14850.6565174742. The cubic root of 220541999 is about 604.1764164219.

The spelling of 220541999 in words is "two hundred twenty million, five hundred forty-one thousand, nine hundred ninety-nine".