22212201200178 has 128 divisors (see below), whose sum is σ = 51149010124800. Its totient is φ = 6359807880000.

The previous prime is 22212201200177. The next prime is 22212201200201. The reversal of 22212201200178 is 87100210221222.

It is not an unprimeable number, because it can be changed into a prime (22212201200177) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1021192803 + ... + 1021214553.

It is an arithmetic number, because the mean of its divisors is an integer number (399601641600).

Almost surely, 2^{22212201200178} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22212201200178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25574505062400).

22212201200178 is an abundant number, since it is smaller than the sum of its proper divisors (28936808924622).

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

22212201200178 is a wasteful number, since it uses less digits than its factorization.

22212201200178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23908.

The product of its (nonzero) digits is 3584, while the sum is 30.

The spelling of 22212201200178 in words is "twenty-two trillion, two hundred twelve billion, two hundred one million, two hundred thousand, one hundred seventy-eight".