222224144478 has 24 divisors (see below), whose sum is σ = 517011275592. Its totient is φ = 63492612624.

The previous prime is 222224144423. The next prime is 222224144479. The reversal of 222224144478 is 874441422222.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222224144479) 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 11 ways as a sum of consecutive naturals, for example, 377931925 + ... + 377932512.

It is an arithmetic number, because the mean of its divisors is an integer number (21542136483).

Almost surely, 2^222224144478 is an apocalyptic number.

222224144478 is an abundant number, since it is smaller than the sum of its proper divisors (294787131114).

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

222224144478 is a wasteful number, since it uses less digits than its factorization.

222224144478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755864456 (or 755864449 counting only the distinct ones).

The product of its digits is 458752, while the sum is 42.

The spelling of 222224144478 in words is "two hundred twenty-two billion, two hundred twenty-four million, one hundred forty-four thousand, four hundred seventy-eight".