222424240400 has 30 divisors (see below), whose sum is σ = 534374238522. Its totient is φ = 88969696000.

The previous prime is 222424240391. The next prime is 222424240439. The reversal of 222424240400 is 4042424222.

It can be written as a sum of positive squares in 3 ways, for example, as 62986944784 + 159437295616 = 250972^2 + 399296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 222424240400.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278029901 + ... + 278030700.

Almost surely, 2^222424240400 is an apocalyptic number.

222424240400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222424240400 is an abundant number, since it is smaller than the sum of its proper divisors (311949998122).

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

222424240400 is a wasteful number, since it uses less digits than its factorization.

222424240400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556060619 (or 556060608 counting only the distinct ones).

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

Adding to 222424240400 its reverse (4042424222), we get a palindrome (226466664622).

The spelling of 222424240400 in words is "two hundred twenty-two billion, four hundred twenty-four million, two hundred forty thousand, four hundred".