220005311 has 8 divisors (see below), whose sum is σ = 222124224. Its totient is φ = 217896480.

The previous prime is 220005307. The next prime is 220005337. The reversal of 220005311 is 113500022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220005311 - 2² = 220005307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220005301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45626 + ... + 50216.

It is an arithmetic number, because the mean of its divisors is an integer number (27765528).

Almost surely, 2^220005311 is an apocalyptic number.

220005311 is a deficient number, since it is larger than the sum of its proper divisors (2118913).

220005311 is a wasteful number, since it uses less digits than its factorization.

220005311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5041.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 220005311 is about 14832.5760068843. The cubic root of 220005311 is about 603.6859314440.

Adding to 220005311 its reverse (113500022), we get a palindrome (333505333).

The spelling of 220005311 in words is "two hundred twenty million, five thousand, three hundred eleven".