220020331 has 8 divisors (see below), whose sum is σ = 224979120. Its totient is φ = 215091552.

The previous prime is 220020313. The next prime is 220020343. The reversal of 220020331 is 133020022.

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 220020331 - 2¹⁷ = 219889259 is a prime.

It is a super-2 number, since 2×220020331² = 96817892106699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220000331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7665 + ... + 22333.

It is an arithmetic number, because the mean of its divisors is an integer number (28122390).

Almost surely, 2^220020331 is an apocalyptic number.

220020331 is a deficient number, since it is larger than the sum of its proper divisors (4958789).

220020331 is a wasteful number, since it uses less digits than its factorization.

220020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15005.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 220020331 is about 14833.0823162281. The cubic root of 220020331 is about 603.6996692280.

Adding to 220020331 its reverse (133020022), we get a palindrome (353040353).

The spelling of 220020331 in words is "two hundred twenty million, twenty thousand, three hundred thirty-one".