1000021233 has 16 divisors (see below), whose sum is σ = 1354590720. Its totient is φ = 656106624.

The previous prime is 1000021229. The next prime is 1000021247. The reversal of 1000021233 is 3321200001.

It is a happy number.

It is not a de Polignac number, because 1000021233 - 2² = 1000021229 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000021273) 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, 100135 + ... + 109667.

It is an arithmetic number, because the mean of its divisors is an integer number (84661920).

Almost surely, 2^1000021233 is an apocalyptic number.

It is an amenable number.

1000021233 is a deficient number, since it is larger than the sum of its proper divisors (354569487).

1000021233 is an equidigital number, since it uses as much as digits as its factorization.

1000021233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10088.

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

The square root of 1000021233 is about 31623.1123231095. The cubic root of 1000021233 is about 1000.0070776166.

Adding to 1000021233 its reverse (3321200001), we get a palindrome (4321221234).

The spelling of 1000021233 in words is "one billion, twenty-one thousand, two hundred thirty-three".