222208453646872 has 512 divisors, whose sum is σ = 561746799820800. Its totient is φ = 79790431795200.

The previous prime is 222208453646867. The next prime is 222208453646903. The reversal of 222208453646872 is 278646354802222.

It is a self number, because there is not a number n which added to its sum of digits gives 222208453646872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 236140757922 + ... + 236140758862.

It is an arithmetic number, because the mean of its divisors is an integer number (1097161718400).

Almost surely, 2^{222208453646872} is an apocalyptic number.

222208453646872 is a gapful number since it is divisible by the number (22) 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 222208453646872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280873399910400).

222208453646872 is an abundant number, since it is smaller than the sum of its proper divisors (339538346173928).

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

222208453646872 is a wasteful number, since it uses less digits than its factorization.

222208453646872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407 (or 2403 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 61.

The spelling of 222208453646872 in words is "two hundred twenty-two trillion, two hundred eight billion, four hundred fifty-three million, six hundred forty-six thousand, eight hundred seventy-two".