1000332021 has 16 divisors (see below), whose sum is σ = 1437246720. Its totient is φ = 615215040.

The previous prime is 1000332001. The next prime is 1000332029. The reversal of 1000332021 is 1202330001.

It is a happy number.

It is not a de Polignac number, because 1000332021 - 2⁵ = 1000331989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000331988 and 1000332006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000332029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66115 + ... + 79823.

It is an arithmetic number, because the mean of its divisors is an integer number (89827920).

Almost surely, 2^1000332021 is an apocalyptic number.

It is an amenable number.

1000332021 is a deficient number, since it is larger than the sum of its proper divisors (436914699).

1000332021 is a wasteful number, since it uses less digits than its factorization.

1000332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15596.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1000332021 is about 31628.0258789574. The cubic root of 1000332021 is about 1000.1106614203.

Adding to 1000332021 its reverse (1202330001), we get a palindrome (2202662022).

It can be divided in two parts, 10003 and 32021, that added together give a palindrome (42024).

The spelling of 1000332021 in words is "one billion, three hundred thirty-two thousand, twenty-one".