222378024344 has 128 divisors (see below), whose sum is σ = 499289616000. Its totient is φ = 90841153536.

The previous prime is 222378024311. The next prime is 222378024353. The reversal of 222378024344 is 443420873222.

It is a super-2 number, since 2×222378024344² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71988752 + ... + 71991840.

It is an arithmetic number, because the mean of its divisors is an integer number (3900700125).

Almost surely, 2^222378024344 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 222378024344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249644808000).

222378024344 is an abundant number, since it is smaller than the sum of its proper divisors (276911591656).

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

222378024344 is a wasteful number, since it uses less digits than its factorization.

222378024344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685 (or 3681 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 41.

Adding to 222378024344 its reverse (443420873222), we get a palindrome (665798897566).

The spelling of 222378024344 in words is "two hundred twenty-two billion, three hundred seventy-eight million, twenty-four thousand, three hundred forty-four".