21300321312210 has 32 divisors (see below), whose sum is σ = 51267249028800. Its totient is φ = 5663810363328.

The previous prime is 21300321312197. The next prime is 21300321312239. The reversal of 21300321312210 is 1221312300312.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1017196852 + ... + 1017217791.

It is an arithmetic number, because the mean of its divisors is an integer number (1602101532150).

Almost surely, 2^{21300321312210} is an apocalyptic number.

21300321312210 is an abundant number, since it is smaller than the sum of its proper divisors (29966927716590).

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

21300321312210 is a wasteful number, since it uses less digits than its factorization.

21300321312210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034415002.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21300321312210 its reverse (1221312300312), we get a palindrome (22521633612522).

The spelling of 21300321312210 in words is "twenty-one trillion, three hundred billion, three hundred twenty-one million, three hundred twelve thousand, two hundred ten".