21233320133020 has 48 divisors (see below), whose sum is σ = 44877619100160. Its totient is φ = 8438708609856.

The previous prime is 21233320132991. The next prime is 21233320133041. The reversal of 21233320133020 is 2033102333212.

It is a congruent number.

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, 3331992 + ... + 7319071.

It is an arithmetic number, because the mean of its divisors is an integer number (934950397920).

Almost surely, 2^{21233320133020} is an apocalyptic number.

21233320133020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233320133020 is an abundant number, since it is smaller than the sum of its proper divisors (23644298967140).

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

21233320133020 is a wasteful number, since it uses less digits than its factorization.

21233320133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10651714 (or 10651712 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21233320133020 its reverse (2033102333212), we get a palindrome (23266422466232).

The spelling of 21233320133020 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twenty million, one hundred thirty-three thousand, twenty".