220038811 has 2 divisors, whose sum is σ = 220038812. Its totient is φ = 220038810.

The previous prime is 220038799. The next prime is 220038817. The reversal of 220038811 is 118830022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 220038811 - 2¹³ = 220030619 is a prime.

It is not a weakly prime, because it can be changed into another prime (220038817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110019405 + 110019406.

It is an arithmetic number, because the mean of its divisors is an integer number (110019406).

Almost surely, 2^220038811 is an apocalyptic number.

220038811 is a deficient number, since it is larger than the sum of its proper divisors (1).

220038811 is an equidigital number, since it uses as much as digits as its factorization.

220038811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 220038811 is about 14833.7052350382. The cubic root of 220038811 is about 603.7165707836.

Adding to 220038811 its reverse (118830022), we get a palindrome (338868833).

The spelling of 220038811 in words is "two hundred twenty million, thirty-eight thousand, eight hundred eleven".