222002440440 has 128 divisors (see below), whose sum is σ = 728289273600. Its totient is φ = 53690193920.

The previous prime is 222002440403. The next prime is 222002440459. The reversal of 222002440440 is 44044200222.

It is a super-2 number, since 2×222002440440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 222002440440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352384 + ... + 753776.

It is an arithmetic number, because the mean of its divisors is an integer number (5689759950).

Almost surely, 2^222002440440 is an apocalyptic number.

222002440440 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 222002440440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364144636800).

222002440440 is an abundant number, since it is smaller than the sum of its proper divisors (506286833160).

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

222002440440 is a wasteful number, since it uses less digits than its factorization.

222002440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401837 (or 401833 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 222002440440 its reverse (44044200222), we get a palindrome (266046640662).

The spelling of 222002440440 in words is "two hundred twenty-two billion, two million, four hundred forty thousand, four hundred forty".