21102222001110 has 64 divisors (see below), whose sum is σ = 51978775680000. Its totient is φ = 5480986275072.

The previous prime is 21102222001079. The next prime is 21102222001117. The reversal of 21102222001110 is 1110022220112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 21102222001110.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21102222001117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58802110 + ... + 59159889.

It is an arithmetic number, because the mean of its divisors is an integer number (812168370000).

Almost surely, 2^{21102222001110} is an apocalyptic number.

21102222001110 is an abundant number, since it is smaller than the sum of its proper divisors (30876553678890).

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

21102222001110 is a wasteful number, since it uses less digits than its factorization.

21102222001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117962165.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21102222001110 its reverse (1110022220112), we get a palindrome (22212244221222).

The spelling of 21102222001110 in words is "twenty-one trillion, one hundred two billion, two hundred twenty-two million, one thousand, one hundred ten".