222221338301928 has 192 divisors, whose sum is σ = 668346602901120. Its totient is φ = 60297477811200.

The previous prime is 222221338301803. The next prime is 222221338301933. The reversal of 222221338301928 is 829103833122222.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4273443 + ... + 21510578.

It is an arithmetic number, because the mean of its divisors is an integer number (3480971890110).

Almost surely, 2^{222221338301928} is an apocalyptic number.

222221338301928 is a gapful number since it is divisible by the number (28) 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 222221338301928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334173301450560).

222221338301928 is an abundant number, since it is smaller than the sum of its proper divisors (446125264599192).

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

222221338301928 is a wasteful number, since it uses less digits than its factorization.

222221338301928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25784156 (or 25784123 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 222221338301928 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, three hundred thirty-eight million, three hundred one thousand, nine hundred twenty-eight".