21020133033330 has 16 divisors (see below), whose sum is σ = 50448319280064. Its totient is φ = 5605368808880.

The previous prime is 21020133033283. The next prime is 21020133033377. The reversal of 21020133033330 is 3333033102012.

It is an interprime number because it is at equal distance from previous prime (21020133033283) and next prime (21020133033377).

It is a self number, because there is not a number n which added to its sum of digits gives 21020133033330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350335550526 + ... + 350335550585.

It is an arithmetic number, because the mean of its divisors is an integer number (3153019955004).

Almost surely, 2^{21020133033330} is an apocalyptic number.

21020133033330 is an abundant number, since it is smaller than the sum of its proper divisors (29428186246734).

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

21020133033330 is a wasteful number, since it uses less digits than its factorization.

21020133033330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700671101121.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 21020133033330 its reverse (3333033102012), we get a palindrome (24353166135342).

The spelling of 21020133033330 in words is "twenty-one trillion, twenty billion, one hundred thirty-three million, thirty-three thousand, three hundred thirty".