21210322199984 has 10 divisors (see below), whose sum is σ = 41094999262500. Its totient is φ = 10605161099984.

The previous prime is 21210322199953. The next prime is 21210322200013. The reversal of 21210322199984 is 48999122301212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662822568734 + ... + 662822568765.

It is an arithmetic number, because the mean of its divisors is an integer number (4109499926250).

Almost surely, 2^{21210322199984} is an apocalyptic number.

It is an amenable number.

21210322199984 is a deficient number, since it is larger than the sum of its proper divisors (19884677062516).

21210322199984 is a wasteful number, since it uses less digits than its factorization.

21210322199984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325645137507 (or 1325645137501 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 53.

The spelling of 21210322199984 in words is "twenty-one trillion, two hundred ten billion, three hundred twenty-two million, one hundred ninety-nine thousand, nine hundred eighty-four".