21333132110120 has 32 divisors (see below), whose sum is σ = 48657075298920. Its totient is φ = 8416358968320.

The previous prime is 21333132110113. The next prime is 21333132110137. The reversal of 21333132110120 is 2101123133312.

It can be written as a sum of positive squares in 4 ways, for example, as 9884748576004 + 11448383534116 = 3144002^2 + 3383546^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3652930661 + ... + 3652936500.

Almost surely, 2^{21333132110120} is an apocalyptic number.

21333132110120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21333132110120 is an abundant number, since it is smaller than the sum of its proper divisors (27323943188800).

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

21333132110120 is a wasteful number, since it uses less digits than its factorization.

21333132110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7305867245 (or 7305867241 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21333132110120 its reverse (2101123133312), we get a palindrome (23434255243432).

The spelling of 21333132110120 in words is "twenty-one trillion, three hundred thirty-three billion, one hundred thirty-two million, one hundred ten thousand, one hundred twenty".