12201212122000 has 160 divisors (see below), whose sum is σ = 32261416387200. Its totient is φ = 4426212032000.

The previous prime is 12201212121997. The next prime is 12201212122003. The reversal of 12201212122000 is 22121210221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12201212121997) and next prime (12201212122003).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (12201212122003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8556186 + ... + 9879814.

It is an arithmetic number, because the mean of its divisors is an integer number (201633852420).

Almost surely, 2^{12201212122000} is an apocalyptic number.

12201212122000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12201212122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16130708193600).

12201212122000 is an abundant number, since it is smaller than the sum of its proper divisors (20060204265200).

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

12201212122000 is a wasteful number, since it uses less digits than its factorization.

12201212122000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324082 (or 1324066 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12201212122000 its reverse (22121210221), we get a palindrome (12223333332221).

The spelling of 12201212122000 in words is "twelve trillion, two hundred one billion, two hundred twelve million, one hundred twenty-two thousand".