121312200110201 has 32 divisors (see below), whose sum is σ = 128472866795520. Its totient is φ = 114231429792000.

The previous prime is 121312200110159. The next prime is 121312200110203. The reversal of 121312200110201 is 102011002213121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121312200110201 - 2¹⁸ = 121312199848057 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 121312200110201.

It is not an unprimeable number, because it can be changed into a prime (121312200110203) 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, 8215080320 + ... + 8215095086.

It is an arithmetic number, because the mean of its divisors is an integer number (4014777087360).

Almost surely, 2^{121312200110201} is an apocalyptic number.

It is an amenable number.

121312200110201 is a deficient number, since it is larger than the sum of its proper divisors (7160666685319).

121312200110201 is a wasteful number, since it uses less digits than its factorization.

121312200110201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18965.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121312200110201 its reverse (102011002213121), we get a palindrome (223323202323322).

The spelling of 121312200110201 in words is "one hundred twenty-one trillion, three hundred twelve billion, two hundred million, one hundred ten thousand, two hundred one".