1000220983 has 8 divisors (see below), whose sum is σ = 1033718400. Its totient is φ = 966800640.

The previous prime is 1000220927. The next prime is 1000220999. The reversal of 1000220983 is 3890220001.

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 1000220983 - 2⁹ = 1000220471 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 (1000220183) 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, 7743 + ... + 45391.

It is an arithmetic number, because the mean of its divisors is an integer number (129214800).

Almost surely, 2^1000220983 is an apocalyptic number.

1000220983 is a deficient number, since it is larger than the sum of its proper divisors (33497417).

1000220983 is an equidigital number, since it uses as much as digits as its factorization.

1000220983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38537.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1000220983 is about 31626.2704566947. The cubic root of 1000220983 is about 1000.0736555747.

Adding to 1000220983 its reverse (3890220001), we get a palindrome (4890440984).

The spelling of 1000220983 in words is "one billion, two hundred twenty thousand, nine hundred eighty-three".