12201212209998 has 64 divisors (see below), whose sum is σ = 29564865285120. Its totient is φ = 3277011451392.

The previous prime is 12201212209997. The next prime is 12201212210023. The reversal of 12201212209998 is 89990221210221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201212209997) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9794233 + ... + 10969476.

It is an arithmetic number, because the mean of its divisors is an integer number (461951020080).

Almost surely, 2^{12201212209998} is an apocalyptic number.

12201212209998 is an abundant number, since it is smaller than the sum of its proper divisors (17363653075122).

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

12201212209998 is a wasteful number, since it uses less digits than its factorization.

12201212209998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20764561.

The product of its (nonzero) digits is 186624, while the sum is 48.

The spelling of 12201212209998 in words is "twelve trillion, two hundred one billion, two hundred twelve million, two hundred nine thousand, nine hundred ninety-eight".