21033120332 has 24 divisors (see below), whose sum is σ = 42201519360. Its totient is φ = 8985206160.

The previous prime is 21033120299. The next prime is 21033120347. The reversal of 21033120332 is 23302133012.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1198982 + ... + 1216397.

It is an arithmetic number, because the mean of its divisors is an integer number (1758396640).

Almost surely, 2^21033120332 is an apocalyptic number.

It is an amenable number.

21033120332 is an abundant number, since it is smaller than the sum of its proper divisors (21168399028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21033120332 is a wasteful number, since it uses less digits than its factorization.

21033120332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2415701 (or 2415699 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21033120332 its reverse (23302133012), we get a palindrome (44335253344).

The spelling of 21033120332 in words is "twenty-one billion, thirty-three million, one hundred twenty thousand, three hundred thirty-two".