1000220231 has 8 divisors (see below), whose sum is σ = 1021226640. Its totient is φ = 979411392.

The previous prime is 1000220209. The next prime is 1000220267. The reversal of 1000220231 is 1320220001.

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 1000220231 - 2⁶ = 1000220167 is a prime.

It is a super-2 number, since 2×1000220231² = 2000881021003386722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000220731) 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, 39140 + ... + 59433.

It is an arithmetic number, because the mean of its divisors is an integer number (127653330).

Almost surely, 2^1000220231 is an apocalyptic number.

1000220231 is a deficient number, since it is larger than the sum of its proper divisors (21006409).

1000220231 is an equidigital number, since it uses as much as digits as its factorization.

1000220231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98785.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1000220231 is about 31626.2585678420. The cubic root of 1000220231 is about 1000.0734049449.

Adding to 1000220231 its reverse (1320220001), we get a palindrome (2320440232).

The spelling of 1000220231 in words is "one billion, two hundred twenty thousand, two hundred thirty-one".