121210212200201 has 2 divisors, whose sum is σ = 121210212200202. Its totient is φ = 121210212200200.

The previous prime is 121210212200197. The next prime is 121210212200221. The reversal of 121210212200201 is 102002212012121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90378789914176 + 30831422286025 = 9506776^2 + 5552605^2 .

It is a cyclic number.

It is not a de Polignac number, because 121210212200201 - 2² = 121210212200197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121210212200201.

It is not a weakly prime, because it can be changed into another prime (121210212200221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605106100100 + 60605106100101.

It is an arithmetic number, because the mean of its divisors is an integer number (60605106100101).

Almost surely, 2^{121210212200201} is an apocalyptic number.

It is an amenable number.

121210212200201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210212200201 is an equidigital number, since it uses as much as digits as its factorization.

121210212200201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121210212200201 its reverse (102002212012121), we get a palindrome (223212424212322).

The spelling of 121210212200201 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twelve million, two hundred thousand, two hundred one".