4201820404212 has 24 divisors (see below), whose sum is σ = 9821661919776. Its totient is φ = 1398119042848.

The previous prime is 4201820404207. The next prime is 4201820404231. The reversal of 4201820404212 is 2124040281024.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4201820404212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310962783 + ... + 310976294.

It is an arithmetic number, because the mean of its divisors is an integer number (409235913324).

Almost surely, 2^{4201820404212} is an apocalyptic number.

It is an amenable number.

4201820404212 is an abundant number, since it is smaller than the sum of its proper divisors (5619841515564).

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

4201820404212 is a wasteful number, since it uses less digits than its factorization.

4201820404212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621939647 (or 621939645 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 30.

Adding to 4201820404212 its reverse (2124040281024), we get a palindrome (6325860685236).

The spelling of 4201820404212 in words is "four trillion, two hundred one billion, eight hundred twenty million, four hundred four thousand, two hundred twelve".