222417887856 has 320 divisors, whose sum is σ = 671019909120. Its totient is φ = 63009239040.

The previous prime is 222417887849. The next prime is 222417887869. The reversal of 222417887856 is 658788714222.

It is a self number, because there is not a number n which added to its sum of digits gives 222417887856.

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 63 ways as a sum of consecutive naturals, for example, 32198355 + ... + 32205261.

It is an arithmetic number, because the mean of its divisors is an integer number (2096937216).

Almost surely, 2^222417887856 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 222417887856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335509954560).

222417887856 is an abundant number, since it is smaller than the sum of its proper divisors (448602021264).

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

222417887856 is a wasteful number, since it uses less digits than its factorization.

222417887856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052 (or 7046 counting only the distinct ones).

The product of its digits is 24084480, while the sum is 60.

The spelling of 222417887856 in words is "two hundred twenty-two billion, four hundred seventeen million, eight hundred eighty-seven thousand, eight hundred fifty-six".