220112210021212 has 48 divisors (see below), whose sum is σ = 411503785297920. Its totient is φ = 102790634788800.

The previous prime is 220112210021153. The next prime is 220112210021287. The reversal of 220112210021212 is 212120012211022.

It is a self number, because there is not a number n which added to its sum of digits gives 220112210021212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4024008 + ... + 21363919.

It is an arithmetic number, because the mean of its divisors is an integer number (8572995527040).

Almost surely, 2^{220112210021212} is an apocalyptic number.

It is an amenable number.

220112210021212 is a deficient number, since it is larger than the sum of its proper divisors (191391575276708).

220112210021212 is a wasteful number, since it uses less digits than its factorization.

220112210021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25390402 (or 25390400 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220112210021212 its reverse (212120012211022), we get a palindrome (432232222232234).

The spelling of 220112210021212 in words is "two hundred twenty trillion, one hundred twelve billion, two hundred ten million, twenty-one thousand, two hundred twelve".