12121220202200 has 24 divisors (see below), whose sum is σ = 28181836970580. Its totient is φ = 4848488080800.

The previous prime is 12121220202193. The next prime is 12121220202233. The reversal of 12121220202200 is 220202212121.

It is a happy number.

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 5 ways as a sum of consecutive naturals, for example, 30303050306 + ... + 30303050705.

Almost surely, 2^{12121220202200} is an apocalyptic number.

12121220202200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12121220202200 is an abundant number, since it is smaller than the sum of its proper divisors (16060616768380).

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

12121220202200 is a wasteful number, since it uses less digits than its factorization.

12121220202200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60606101027 (or 60606101018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12121220202200 its reverse (220202212121), we get a palindrome (12341422414321).

The spelling of 12121220202200 in words is "twelve trillion, one hundred twenty-one billion, two hundred twenty million, two hundred two thousand, two hundred".