121001122201 has 2 divisors, whose sum is σ = 121001122202. Its totient is φ = 121001122200.

The previous prime is 121001122189. The next prime is 121001122247. The reversal of 121001122201 is 102221100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69814322176 + 51186800025 = 264224^2 + 226245^2 .

It is a cyclic number.

It is not a de Polignac number, because 121001122201 - 2²⁵ = 120967567769 is a prime.

It is not a weakly prime, because it can be changed into another prime (121001128201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500561100 + 60500561101.

It is an arithmetic number, because the mean of its divisors is an integer number (60500561101).

Almost surely, 2^121001122201 is an apocalyptic number.

It is an amenable number.

121001122201 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001122201 is an equidigital number, since it uses as much as digits as its factorization.

121001122201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121001122201 its reverse (102221100121), we get a palindrome (223222222322).

The spelling of 121001122201 in words is "one hundred twenty-one billion, one million, one hundred twenty-two thousand, two hundred one".