22020121110 has 128 divisors (see below), whose sum is σ = 59558768640. Its totient is φ = 5169770496.

The previous prime is 22020121093. The next prime is 22020121127. The reversal of 22020121110 is 1112102022.

It is an interprime number because it is at equal distance from previous prime (22020121093) and next prime (22020121127).

22020121110 is a modest number, since divided by 121110 gives 22020 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3288646 + ... + 3295334.

It is an arithmetic number, because the mean of its divisors is an integer number (465302880).

Almost surely, 2^22020121110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22020121110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29779384320).

22020121110 is an abundant number, since it is smaller than the sum of its proper divisors (37538647530).

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

22020121110 is a wasteful number, since it uses less digits than its factorization.

22020121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7102.

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

Adding to 22020121110 its reverse (1112102022), we get a palindrome (23132223132).

The spelling of 22020121110 in words is "twenty-two billion, twenty million, one hundred twenty-one thousand, one hundred ten".