222100424 has 64 divisors (see below), whose sum is σ = 539548800. Its totient is φ = 83234304.

The previous prime is 222100423. The next prime is 222100507. The reversal of 222100424 is 424001222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222100423) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5804 + ... + 21860.

It is an arithmetic number, because the mean of its divisors is an integer number (8430450).

Almost surely, 2^222100424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222100424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269774400).

222100424 is an abundant number, since it is smaller than the sum of its proper divisors (317448376).

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

222100424 is a wasteful number, since it uses less digits than its factorization.

222100424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16102 (or 16098 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 222100424 is about 14903.0340535074. The cubic root of 222100424 is about 605.5961830249.

Adding to 222100424 its reverse (424001222), we get a palindrome (646101646).

The spelling of 222100424 in words is "two hundred twenty-two million, one hundred thousand, four hundred twenty-four".