21223033333232 has 40 divisors (see below), whose sum is σ = 41656299786000. Its totient is φ = 10473448612352.

The previous prime is 21223033333193. The next prime is 21223033333237. The reversal of 21223033333232 is 23233333032212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223033333237) 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, 12585482 + ... + 14171817.

It is an arithmetic number, because the mean of its divisors is an integer number (1041407494650).

Almost surely, 2^{21223033333232} is an apocalyptic number.

It is an amenable number.

21223033333232 is a deficient number, since it is larger than the sum of its proper divisors (20433266452768).

21223033333232 is a wasteful number, since it uses less digits than its factorization.

21223033333232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26757953 (or 26757947 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 32.

Adding to 21223033333232 its reverse (23233333032212), we get a palindrome (44456366365444).

The spelling of 21223033333232 in words is "twenty-one trillion, two hundred twenty-three billion, thirty-three million, three hundred thirty-three thousand, two hundred thirty-two".