222609561748236 has 384 divisors, whose sum is σ = 636192117227520. Its totient is φ = 66899203257600.

The previous prime is 222609561748219. The next prime is 222609561748241. The reversal of 222609561748236 is 632847165906222.

222609561748236 is a `hidden beast` number, since 2 + 2 + 2 + 6 + 0 + 9 + 5 + 617 + 4 + 8 + 2 + 3 + 6 = 666.

It is a super-2 number, since 2×222609561748236² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8747956065 + ... + 8747981511.

It is an arithmetic number, because the mean of its divisors is an integer number (1656750305280).

It is a 1-persistent number, because it is pandigital, but 2⋅222609561748236 = 445219123496472 is not.

Almost surely, 2^{222609561748236} is an apocalyptic number.

222609561748236 is a gapful number since it is divisible by the number (26) 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 222609561748236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318096058613760).

222609561748236 is an abundant number, since it is smaller than the sum of its proper divisors (413582555479284).

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

222609561748236 is a wasteful number, since it uses less digits than its factorization.

222609561748236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26362 (or 26354 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 63.

The spelling of 222609561748236 in words is "two hundred twenty-two trillion, six hundred nine billion, five hundred sixty-one million, seven hundred forty-eight thousand, two hundred thirty-six".