22002121110 has 64 divisors (see below), whose sum is σ = 53814055680. Its totient is φ = 5755639680.

The previous prime is 22002121067. The next prime is 22002121117. The reversal of 22002121110 is 1112120022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002121117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 677709 + ... + 709431.

It is an arithmetic number, because the mean of its divisors is an integer number (840844620).

Almost surely, 2^22002121110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22002121110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26907027840).

22002121110 is an abundant number, since it is smaller than the sum of its proper divisors (31811934570).

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

22002121110 is a wasteful number, since it uses less digits than its factorization.

22002121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32173.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22002121110 its reverse (1112120022), we get a palindrome (23114241132).

The spelling of 22002121110 in words is "twenty-two billion, two million, one hundred twenty-one thousand, one hundred ten".