22220000100220 has 96 divisors (see below), whose sum is σ = 50545193832000. Its totient is φ = 8156470984704.

The previous prime is 22220000100143. The next prime is 22220000100229. The reversal of 22220000100220 is 2200100002222.

It is a super-3 number, since 3×22220000100220³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 22220000100220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220000100229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31993411 + ... + 32680549.

It is an arithmetic number, because the mean of its divisors is an integer number (526512435750).

Almost surely, 2^{22220000100220} is an apocalyptic number.

22220000100220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220000100220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25272596916000).

22220000100220 is an abundant number, since it is smaller than the sum of its proper divisors (28325193731780).

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

22220000100220 is a wasteful number, since it uses less digits than its factorization.

22220000100220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687887 (or 687885 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 22220000100220 its reverse (2200100002222), we get a palindrome (24420100102442).

The spelling of 22220000100220 in words is "twenty-two trillion, two hundred twenty billion, one hundred thousand, two hundred twenty".