222871409280 has 640 divisors, whose sum is σ = 861562437120. Its totient is φ = 54577815552.

The previous prime is 222871409263. The next prime is 222871409309. The reversal of 222871409280 is 82904178222.

It is a happy number.

222871409280 is a `hidden beast` number, since 2 + 228 + 7 + 140 + 9 + 280 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 150283419 + ... + 150284901.

It is an arithmetic number, because the mean of its divisors is an integer number (1346191308).

Almost surely, 2^222871409280 is an apocalyptic number.

222871409280 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 222871409280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430781218560).

222871409280 is an abundant number, since it is smaller than the sum of its proper divisors (638691027840).

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

222871409280 is a wasteful number, since it uses less digits than its factorization.

222871409280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1750 (or 1729 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 222871409280 in words is "two hundred twenty-two billion, eight hundred seventy-one million, four hundred nine thousand, two hundred eighty".