21035224232 has 32 divisors (see below), whose sum is σ = 43034734080. Its totient is φ = 9559656960.

The previous prime is 21035224213. The next prime is 21035224237. The reversal of 21035224232 is 23242253012.

It is not an unprimeable number, because it can be changed into a prime (21035224237) 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, 518393 + ... + 557495.

It is an arithmetic number, because the mean of its divisors is an integer number (1344835440).

Almost surely, 2^21035224232 is an apocalyptic number.

21035224232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21035224232 is an abundant number, since it is smaller than the sum of its proper divisors (21999509848).

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

21035224232 is a wasteful number, since it uses less digits than its factorization.

21035224232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45233 (or 45229 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 21035224232 its reverse (23242253012), we get a palindrome (44277477244).

The spelling of 21035224232 in words is "twenty-one billion, thirty-five million, two hundred twenty-four thousand, two hundred thirty-two".