222444012432 has 80 divisors (see below), whose sum is σ = 590327163072. Its totient is φ = 72125775360.

The previous prime is 222444012431. The next prime is 222444012433. The reversal of 222444012432 is 234210444222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222444012431) and next prime (222444012433).

It is a super-3 number, since 3×222444012432³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222444012432.

It is not an unprimeable number, because it can be changed into a prime (222444012431) 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, 8221807 + ... + 8248817.

Almost surely, 2^222444012432 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 222444012432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295163581536).

222444012432 is an abundant number, since it is smaller than the sum of its proper divisors (367883150640).

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

222444012432 is a wasteful number, since it uses less digits than its factorization.

222444012432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31696 (or 31690 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 222444012432 its reverse (234210444222), we get a palindrome (456654456654).

The spelling of 222444012432 in words is "two hundred twenty-two billion, four hundred forty-four million, twelve thousand, four hundred thirty-two".