420320100222 has 48 divisors (see below), whose sum is σ = 1045772507520. Its totient is φ = 120666056400.

The previous prime is 420320100217. The next prime is 420320100247. The reversal of 420320100222 is 222001023024.

420320100222 is a `hidden beast` number, since 4 + 20 + 320 + 100 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 420320100195 and 420320100204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55860154 + ... + 55867677.

It is an arithmetic number, because the mean of its divisors is an integer number (21786927240).

Almost surely, 2^420320100222 is an apocalyptic number.

420320100222 is an abundant number, since it is smaller than the sum of its proper divisors (625452407298).

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

420320100222 is a wasteful number, since it uses less digits than its factorization.

420320100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111727869 (or 111727866 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 420320100222 its reverse (222001023024), we get a palindrome (642321123246).

The spelling of 420320100222 in words is "four hundred twenty billion, three hundred twenty million, one hundred thousand, two hundred twenty-two".