22220052355144 has 128 divisors (see below), whose sum is σ = 50304766279680. Its totient is φ = 8999333280000.

The previous prime is 22220052355141. The next prime is 22220052355177. The reversal of 22220052355144 is 44155325002222.

It is a super-2 number, since 2×22220052355144² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22220052355141) 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, 354621322 + ... + 354683974.

It is an arithmetic number, because the mean of its divisors is an integer number (393005986560).

Almost surely, 2^{22220052355144} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22220052355144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25152383139840).

22220052355144 is an abundant number, since it is smaller than the sum of its proper divisors (28084713924536).

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

22220052355144 is a wasteful number, since it uses less digits than its factorization.

22220052355144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67491 (or 67487 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 22220052355144 its reverse (44155325002222), we get a palindrome (66375377357366).

The spelling of 22220052355144 in words is "twenty-two trillion, two hundred twenty billion, fifty-two million, three hundred fifty-five thousand, one hundred forty-four".