21321133320102 has 96 divisors (see below), whose sum is σ = 54649528913664. Its totient is φ = 5483125368000.

The previous prime is 21321133320101. The next prime is 21321133320103. The reversal of 21321133320102 is 20102333112312.

It is an interprime number because it is at equal distance from previous prime (21321133320101) and next prime (21321133320103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21321133320101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32311018 + ... + 32964285.

It is an arithmetic number, because the mean of its divisors is an integer number (569265926184).

Almost surely, 2^{21321133320102} is an apocalyptic number.

21321133320102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21321133320102 is an abundant number, since it is smaller than the sum of its proper divisors (33328395593562).

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

21321133320102 is a wasteful number, since it uses less digits than its factorization.

21321133320102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65275434 (or 65275427 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21321133320102 its reverse (20102333112312), we get a palindrome (41423466432414).

The spelling of 21321133320102 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred thirty-three million, three hundred twenty thousand, one hundred two".