21233021120 has 56 divisors (see below), whose sum is σ = 51515156304. Its totient is φ = 8332952576.

The previous prime is 21233021087. The next prime is 21233021137. The reversal of 21233021120 is 2112033212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 609014 + ... + 642933.

Almost surely, 2^21233021120 is an apocalyptic number.

21233021120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233021120 is an abundant number, since it is smaller than the sum of its proper divisors (30282135184).

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

21233021120 is a wasteful number, since it uses less digits than its factorization.

21233021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252017 (or 1252007 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21233021120 its reverse (2112033212), we get a palindrome (23345054332).

The spelling of 21233021120 in words is "twenty-one billion, two hundred thirty-three million, twenty-one thousand, one hundred twenty".