21202112332 has 12 divisors (see below), whose sum is σ = 37711954336. Its totient is φ = 10427268240.

The previous prime is 21202112311. The next prime is 21202112339. The reversal of 21202112332 is 23321120212.

It is not an unprimeable number, because it can be changed into a prime (21202112339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43446708 + ... + 43447195.

Almost surely, 2^21202112332 is an apocalyptic number.

It is an amenable number.

21202112332 is a deficient number, since it is larger than the sum of its proper divisors (16509842004).

21202112332 is a wasteful number, since it uses less digits than its factorization.

21202112332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86893968 (or 86893966 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21202112332 its reverse (23321120212), we get a palindrome (44523232544).

The spelling of 21202112332 in words is "twenty-one billion, two hundred two million, one hundred twelve thousand, three hundred thirty-two".