21202033332 has 12 divisors (see below), whose sum is σ = 49471411136. Its totient is φ = 7067344440.

The previous prime is 21202033331. The next prime is 21202033357. The reversal of 21202033332 is 23333020212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×21202033332² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21202033299 and 21202033308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202033331) 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, 883418044 + ... + 883418067.

Almost surely, 2^21202033332 is an apocalyptic number.

It is an amenable number.

21202033332 is an abundant number, since it is smaller than the sum of its proper divisors (28269377804).

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

21202033332 is a wasteful number, since it uses less digits than its factorization.

21202033332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766836118 (or 1766836116 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 21202033332 its reverse (23333020212), we get a palindrome (44535053544).

The spelling of 21202033332 in words is "twenty-one billion, two hundred two million, thirty-three thousand, three hundred thirty-two".