21210232032110 has 32 divisors (see below), whose sum is σ = 43841245161600. Its totient is φ = 7306874192160.

The previous prime is 21210232032109. The next prime is 21210232032139. The reversal of 21210232032110 is 1123023201212.

It is a congruent number.

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, 5074216100 + ... + 5074220279.

It is an arithmetic number, because the mean of its divisors is an integer number (1370038911300).

Almost surely, 2^{21210232032110} is an apocalyptic number.

21210232032110 is an abundant number, since it is smaller than the sum of its proper divisors (22631013129490).

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

21210232032110 is a wasteful number, since it uses less digits than its factorization.

21210232032110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10148436416.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21210232032110 its reverse (1123023201212), we get a palindrome (22333255233322).

The spelling of 21210232032110 in words is "twenty-one trillion, two hundred ten billion, two hundred thirty-two million, thirty-two thousand, one hundred ten".