21121033323300 has 144 divisors (see below), whose sum is σ = 65043678938112. Its totient is φ = 5273211238400.

The previous prime is 21121033323293. The next prime is 21121033323319. The reversal of 21121033323300 is 332333012112.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9867207 + ... + 11815406.

It is an arithmetic number, because the mean of its divisors is an integer number (451692214848).

Almost surely, 2^{21121033323300} is an apocalyptic number.

21121033323300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21121033323300 is an abundant number, since it is smaller than the sum of its proper divisors (43922645614812).

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

21121033323300 is a wasteful number, since it uses less digits than its factorization.

21121033323300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21682838 (or 21682831 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21121033323300 its reverse (332333012112), we get a palindrome (21453366335412).

The spelling of 21121033323300 in words is "twenty-one trillion, one hundred twenty-one billion, thirty-three million, three hundred twenty-three thousand, three hundred".