21120332032 has 36 divisors (see below), whose sum is σ = 42200056080. Its totient is φ = 10549672448.

The previous prime is 21120332003. The next prime is 21120332047. The reversal of 21120332032 is 23023302112.

It is a super-3 number, since 3×21120332032³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220383 + ... + 301345.

It is an arithmetic number, because the mean of its divisors is an integer number (1172223780).

Almost surely, 2^21120332032 is an apocalyptic number.

It is an amenable number.

21120332032 is a deficient number, since it is larger than the sum of its proper divisors (21079724048).

21120332032 is an equidigital number, since it uses as much as digits as its factorization.

21120332032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81998 (or 81984 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21120332032 its reverse (23023302112), we get a palindrome (44143634144).

The spelling of 21120332032 in words is "twenty-one billion, one hundred twenty million, three hundred thirty-two thousand, thirty-two".