22242220140 has 144 divisors (see below), whose sum is σ = 73000376064. Its totient is φ = 5045040000.

The previous prime is 22242220087. The next prime is 22242220157. The reversal of 22242220140 is 4102224222.

It is a super-3 number, since 3×22242220140³ (a number of 32 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 47 ways as a sum of consecutive naturals, for example, 356265 + ... + 414015.

It is an arithmetic number, because the mean of its divisors is an integer number (506947056).

Almost surely, 2^22242220140 is an apocalyptic number.

22242220140 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 22242220140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36500188032).

22242220140 is an abundant number, since it is smaller than the sum of its proper divisors (50758155924).

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

22242220140 is a wasteful number, since it uses less digits than its factorization.

22242220140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57908 (or 57899 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 22242220140 its reverse (4102224222), we get a palindrome (26344444362).

The spelling of 22242220140 in words is "twenty-two billion, two hundred forty-two million, two hundred twenty thousand, one hundred forty".