222220400024 has 32 divisors (see below), whose sum is σ = 482214259200. Its totient is φ = 94031776800.

The previous prime is 222220400021. The next prime is 222220400053. The reversal of 222220400024 is 420004022222.

It is a junction number, because it is equal to n+sod(n) for n = 222220399969 and 222220400005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222220400021) 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, 25110902 + ... + 25119749.

It is an arithmetic number, because the mean of its divisors is an integer number (15069195600).

Almost surely, 2^222220400024 is an apocalyptic number.

It is an amenable number.

222220400024 is an abundant number, since it is smaller than the sum of its proper divisors (259993859176).

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

222220400024 is a wasteful number, since it uses less digits than its factorization.

222220400024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50230743 (or 50230739 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 222220400024 its reverse (420004022222), we get a palindrome (642224422246).

The spelling of 222220400024 in words is "two hundred twenty-two billion, two hundred twenty million, four hundred thousand, twenty-four".