21302022232 has 8 divisors (see below), whose sum is σ = 39941291700. Its totient is φ = 10651011112.

The previous prime is 21302022221. The next prime is 21302022233. The reversal of 21302022232 is 23222020312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×21302022232³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302022233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331376382 + ... + 1331376397.

Almost surely, 2^21302022232 is an apocalyptic number.

It is an amenable number.

21302022232 is a deficient number, since it is larger than the sum of its proper divisors (18639269468).

21302022232 is a wasteful number, since it uses less digits than its factorization.

21302022232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2662752785 (or 2662752781 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21302022232 its reverse (23222020312), we get a palindrome (44524042544).

The spelling of 21302022232 in words is "twenty-one billion, three hundred two million, twenty-two thousand, two hundred thirty-two".