222224204240 has 40 divisors (see below), whose sum is σ = 516857845320. Its totient is φ = 88857583616.

The previous prime is 222224204239. The next prime is 222224204249. The reversal of 222224204240 is 42402422222.

It can be written as a sum of positive squares in 4 ways, for example, as 52470316096 + 169753888144 = 229064^2 + 412012^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222224204249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277985 + ... + 722304.

It is an arithmetic number, because the mean of its divisors is an integer number (12921446133).

Almost surely, 2^222224204240 is an apocalyptic number.

222224204240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222224204240 is an abundant number, since it is smaller than the sum of its proper divisors (294633641080).

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

222224204240 is a wasteful number, since it uses less digits than its factorization.

222224204240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003079 (or 1003073 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 222224204240 its reverse (42402422222), we get a palindrome (264626626462).

The spelling of 222224204240 in words is "two hundred twenty-two billion, two hundred twenty-four million, two hundred four thousand, two hundred forty".