121001012201 has 2 divisors, whose sum is σ = 121001012202. Its totient is φ = 121001012200.

The previous prime is 121001012147. The next prime is 121001012207. The reversal of 121001012201 is 102210100121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82182555625 + 38818456576 = 286675^2 + 197024^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001012201 - 2¹⁰ = 121001011177 is a prime.

It is not a weakly prime, because it can be changed into another prime (121001012207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500506100 + 60500506101.

It is an arithmetic number, because the mean of its divisors is an integer number (60500506101).

Almost surely, 2^121001012201 is an apocalyptic number.

It is an amenable number.

121001012201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001012201 is an equidigital number, since it uses as much as digits as its factorization.

121001012201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121001012201 its reverse (102210100121), we get a palindrome (223211112322).

The spelling of 121001012201 in words is "one hundred twenty-one billion, one million, twelve thousand, two hundred one".