21233021002 has 16 divisors (see below), whose sum is σ = 33113376000. Its totient is φ = 10198908720.

The previous prime is 21233020997. The next prime is 21233021009. The reversal of 21233021002 is 20012033212.

It is not an unprimeable number, because it can be changed into a prime (21233021009) 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, 908274 + ... + 931357.

It is an arithmetic number, because the mean of its divisors is an integer number (2069586000).

Almost surely, 2^21233021002 is an apocalyptic number.

21233021002 is a deficient number, since it is larger than the sum of its proper divisors (11880354998).

21233021002 is a wasteful number, since it uses less digits than its factorization.

21233021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839861.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21233021002 its reverse (20012033212), we get a palindrome (41245054214).

It can be divided in two parts, 212330 and 21002, that added together give a palindrome (233332).

The spelling of 21233021002 in words is "twenty-one billion, two hundred thirty-three million, twenty-one thousand, two".