402224422220 has 12 divisors (see below), whose sum is σ = 844671286704. Its totient is φ = 160889768880.

The previous prime is 402224422217. The next prime is 402224422307. The reversal of 402224422220 is 22224422204.

It is a self number, because there is not a number n which added to its sum of digits gives 402224422220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10055610536 + ... + 10055610575.

It is an arithmetic number, because the mean of its divisors is an integer number (70389273892).

Almost surely, 2^402224422220 is an apocalyptic number.

It is an amenable number.

402224422220 is an abundant number, since it is smaller than the sum of its proper divisors (442446864484).

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

402224422220 is a wasteful number, since it uses less digits than its factorization.

402224422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20111221120 (or 20111221118 counting only the distinct ones).

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

Adding to 402224422220 its reverse (22224422204), we get a palindrome (424448844424).

The spelling of 402224422220 in words is "four hundred two billion, two hundred twenty-four million, four hundred twenty-two thousand, two hundred twenty".