121112210201 has 2 divisors, whose sum is σ = 121112210202. Its totient is φ = 121112210200.

The previous prime is 121112210143. The next prime is 121112210281. The reversal of 121112210201 is 102012211121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90134450176 + 30977760025 = 300224^2 + 176005^2 .

It is a cyclic number.

It is not a de Polignac number, because 121112210201 - 2⁶ = 121112210137 is a prime.

It is not a weakly prime, because it can be changed into another prime (121112210281) by changing a digit.

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 as a sum of consecutive naturals, namely, 60556105100 + 60556105101.

It is an arithmetic number, because the mean of its divisors is an integer number (60556105101).

Almost surely, 2^121112210201 is an apocalyptic number.

It is an amenable number.

121112210201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121112210201 is an equidigital number, since it uses as much as digits as its factorization.

121112210201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121112210201 its reverse (102012211121), we get a palindrome (223124421322).

The spelling of 121112210201 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred ten thousand, two hundred one".