21233310210020 has 24 divisors (see below), whose sum is σ = 45538673814144. Its totient is φ = 8312615060576.

The previous prime is 21233310210019. The next prime is 21233310210041. The reversal of 21233310210020 is 2001201333212.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 21233310209974 and 21233310210001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11294313002 + ... + 11294314881.

It is an arithmetic number, because the mean of its divisors is an integer number (1897444742256).

Almost surely, 2^{21233310210020} is an apocalyptic number.

21233310210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233310210020 is an abundant number, since it is smaller than the sum of its proper divisors (24305363604124).

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

21233310210020 is a wasteful number, since it uses less digits than its factorization.

21233310210020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22588627939 (or 22588627937 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21233310210020 its reverse (2001201333212), we get a palindrome (23234511543232).

The spelling of 21233310210020 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred ten million, two hundred ten thousand, twenty".