21000332012102 has 8 divisors (see below), whose sum is σ = 31825245420696. Its totient is φ = 10391916871872.

The previous prime is 21000332012059. The next prime is 21000332012119. The reversal of 21000332012102 is 20121023300012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 54124566848 + ... + 54124567235.

It is an arithmetic number, because the mean of its divisors is an integer number (3978155677587).

Almost surely, 2^{21000332012102} is an apocalyptic number.

21000332012102 is a deficient number, since it is larger than the sum of its proper divisors (10824913408594).

21000332012102 is a wasteful number, since it uses less digits than its factorization.

21000332012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108249134182.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21000332012102 its reverse (20121023300012), we get a palindrome (41121355312114).

The spelling of 21000332012102 in words is "twenty-one trillion, three hundred thirty-two million, twelve thousand, one hundred two".