22002002012220 has 192 divisors, whose sum is σ = 65870575626240. Its totient is φ = 5473681100800.

The previous prime is 22002002012141. The next prime is 22002002012239. The reversal of 22002002012220 is 2221020020022.

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 22002002012220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 207652216 + ... + 207758144.

It is an arithmetic number, because the mean of its divisors is an integer number (343075914720).

Almost surely, 2^{22002002012220} is an apocalyptic number.

22002002012220 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 22002002012220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32935287813120).

22002002012220 is an abundant number, since it is smaller than the sum of its proper divisors (43868573614020).

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

22002002012220 is a wasteful number, since it uses less digits than its factorization.

22002002012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109676 (or 109674 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 22002002012220 its reverse (2221020020022), we get a palindrome (24223022032242).

The spelling of 22002002012220 in words is "twenty-two trillion, two billion, two million, twelve thousand, two hundred twenty".