121012201 has 2 divisors, whose sum is σ = 121012202. Its totient is φ = 121012200.

The previous prime is 121012193. The next prime is 121012207. The reversal of 121012201 is 102210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107329600 + 13682601 = 10360^2 + 3699^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012201 - 2³ = 121012193 is a prime.

It is not a weakly prime, because it can be changed into another prime (121012207) 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, 60506100 + 60506101.

It is an arithmetic number, because the mean of its divisors is an integer number (60506101).

Almost surely, 2^121012201 is an apocalyptic number.

It is an amenable number.

121012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012201 is an equidigital number, since it uses as much as digits as its factorization.

121012201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 121012201 is about 11000.5545769293. The cubic root of 121012201 is about 494.6253683427.

Adding to 121012201 its reverse (102210121), we get a palindrome (223222322).

The spelling of 121012201 in words is "one hundred twenty-one million, twelve thousand, two hundred one".