222400278240 has 192 divisors, whose sum is σ = 800918254080. Its totient is φ = 50816747520.

The previous prime is 222400278229. The next prime is 222400278307. The reversal of 222400278240 is 42872004222.

222400278240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222400278240² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11377275 + ... + 11396805.

It is an arithmetic number, because the mean of its divisors is an integer number (4171449240).

Almost surely, 2^222400278240 is an apocalyptic number.

222400278240 is a gapful number since it is divisible by the number (20) 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 222400278240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (400459127040).

222400278240 is an abundant number, since it is smaller than the sum of its proper divisors (578517975840).

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

222400278240 is a wasteful number, since it uses less digits than its factorization.

222400278240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22945 (or 22937 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 33.

The spelling of 222400278240 in words is "two hundred twenty-two billion, four hundred million, two hundred seventy-eight thousand, two hundred forty".