21201001132 has 12 divisors (see below), whose sum is σ = 37368672040. Its totient is φ = 10524237696.

The previous prime is 21201001109. The next prime is 21201001141. The reversal of 21201001132 is 23110010212.

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, 19065093 + ... + 19066204.

Almost surely, 2^21201001132 is an apocalyptic number.

It is an amenable number.

21201001132 is a deficient number, since it is larger than the sum of its proper divisors (16167670908).

21201001132 is a wasteful number, since it uses less digits than its factorization.

21201001132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38131440 (or 38131438 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21201001132 its reverse (23110010212), we get a palindrome (44311011344).

The spelling of 21201001132 in words is "twenty-one billion, two hundred one million, one thousand, one hundred thirty-two".