21302123330220 has 48 divisors (see below), whose sum is σ = 59647231392000. Its totient is φ = 5680443738816.

The previous prime is 21302123330167. The next prime is 21302123330249. The reversal of 21302123330220 is 2203332120312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1004470 + ... + 6604029.

It is an arithmetic number, because the mean of its divisors is an integer number (1242650654000).

Almost surely, 2^{21302123330220} is an apocalyptic number.

21302123330220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21302123330220 is an abundant number, since it is smaller than the sum of its proper divisors (38345108061780).

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

21302123330220 is a wasteful number, since it uses less digits than its factorization.

21302123330220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7655174 (or 7655172 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21302123330220 its reverse (2203332120312), we get a palindrome (23505455450532).

The spelling of 21302123330220 in words is "twenty-one trillion, three hundred two billion, one hundred twenty-three million, three hundred thirty thousand, two hundred twenty".