21303012022 has 8 divisors (see below), whose sum is σ = 33343844976. Its totient is φ = 10188397032.

The previous prime is 21303012013. The next prime is 21303012037. The reversal of 21303012022 is 22021030312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21303011987 and 21303012005.

It is a congruent number.

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, 231554433 + ... + 231554524.

It is an arithmetic number, because the mean of its divisors is an integer number (4167980622).

Almost surely, 2^21303012022 is an apocalyptic number.

21303012022 is a deficient number, since it is larger than the sum of its proper divisors (12040832954).

21303012022 is a wasteful number, since it uses less digits than its factorization.

21303012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463108982.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21303012022 its reverse (22021030312), we get a palindrome (43324042334).

The spelling of 21303012022 in words is "twenty-one billion, three hundred three million, twelve thousand, twenty-two".