12001112212220 has 12 divisors (see below), whose sum is σ = 25202335645704. Its totient is φ = 4800444884880.

The previous prime is 12001112212189. The next prime is 12001112212303. The reversal of 12001112212220 is 2221221110021.

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 3 ways as a sum of consecutive naturals, for example, 300027805286 + ... + 300027805325.

It is an arithmetic number, because the mean of its divisors is an integer number (2100194637142).

Almost surely, 2^{12001112212220} is an apocalyptic number.

12001112212220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001112212220 is an abundant number, since it is smaller than the sum of its proper divisors (13201223433484).

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

12001112212220 is a wasteful number, since it uses less digits than its factorization.

12001112212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600055610620 (or 600055610618 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12001112212220 its reverse (2221221110021), we get a palindrome (14222333322241).

The spelling of 12001112212220 in words is "twelve trillion, one billion, one hundred twelve million, two hundred twelve thousand, two hundred twenty".