12002100312220 has 12 divisors (see below), whose sum is σ = 25204410655704. Its totient is φ = 4800840124880.

The previous prime is 12002100312217. The next prime is 12002100312221. The reversal of 12002100312220 is 2221300120021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12002100312194 and 12002100312203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002100312221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300052507786 + ... + 300052507825.

It is an arithmetic number, because the mean of its divisors is an integer number (2100367554642).

Almost surely, 2^{12002100312220} is an apocalyptic number.

12002100312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12002100312220 is an abundant number, since it is smaller than the sum of its proper divisors (13202310343484).

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

12002100312220 is a wasteful number, since it uses less digits than its factorization.

12002100312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600105015620 (or 600105015618 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12002100312220 its reverse (2221300120021), we get a palindrome (14223400432241).

The spelling of 12002100312220 in words is "twelve trillion, two billion, one hundred million, three hundred twelve thousand, two hundred twenty".