121212203201 has 8 divisors (see below), whose sum is σ = 125137670400. Its totient is φ = 117287698320.

The previous prime is 121212203197. The next prime is 121212203267. The reversal of 121212203201 is 102302212121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121212203201 - 2² = 121212203197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121212203201.

It is not an unprimeable number, because it can be changed into a prime (121212233201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19910 + ... + 492768.

It is an arithmetic number, because the mean of its divisors is an integer number (15642208800).

Almost surely, 2^121212203201 is an apocalyptic number.

It is an amenable number.

121212203201 is a deficient number, since it is larger than the sum of its proper divisors (3925467199).

121212203201 is an equidigital number, since it uses as much as digits as its factorization.

121212203201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481159.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121212203201 its reverse (102302212121), we get a palindrome (223514415322).

The spelling of 121212203201 in words is "one hundred twenty-one billion, two hundred twelve million, two hundred three thousand, two hundred one".