21120322321110 has 64 divisors (see below), whose sum is σ = 53715605388480. Its totient is φ = 5305244958720.

The previous prime is 21120322321099. The next prime is 21120322321129. The reversal of 21120322321110 is 1112322302112.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 296015947 + ... + 296087286.

It is an arithmetic number, because the mean of its divisors is an integer number (839306334195).

Almost surely, 2^{21120322321110} is an apocalyptic number.

21120322321110 is an abundant number, since it is smaller than the sum of its proper divisors (32595283067370).

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

21120322321110 is a wasteful number, since it uses less digits than its factorization.

21120322321110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592103313.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21120322321110 its reverse (1112322302112), we get a palindrome (22232644623222).

The spelling of 21120322321110 in words is "twenty-one trillion, one hundred twenty billion, three hundred twenty-two million, three hundred twenty-one thousand, one hundred ten".