21233223332 has 12 divisors (see below), whose sum is σ = 37162423536. Its totient is φ = 10615388040.

The previous prime is 21233223331. The next prime is 21233223373. The reversal of 21233223332 is 23332233212.

It is not an unprimeable number, because it can be changed into a prime (21233223331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266294 + ... + 336717.

It is an arithmetic number, because the mean of its divisors is an integer number (3096868628).

Almost surely, 2^21233223332 is an apocalyptic number.

It is an amenable number.

21233223332 is a deficient number, since it is larger than the sum of its proper divisors (15929200204).

21233223332 is a wasteful number, since it uses less digits than its factorization.

21233223332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611818 (or 611816 counting only the distinct ones).

The product of its digits is 7776, while the sum is 26.

Adding to 21233223332 its reverse (23332233212), we get a palindrome (44565456544).

The spelling of 21233223332 in words is "twenty-one billion, two hundred thirty-three million, two hundred twenty-three thousand, three hundred thirty-two".