121001122201121 has 2 divisors, whose sum is σ = 121001122201122. Its totient is φ = 121001122201120.

The previous prime is 121001122201051. The next prime is 121001122201243. The reversal of 121001122201121 is 121102221100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110523989015521 + 10477133185600 = 10513039^2 + 3236840^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121001122201121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121001122201121.

It is not a weakly prime, because it can be changed into another prime (121001122201721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60500561100560 + 60500561100561.

It is an arithmetic number, because the mean of its divisors is an integer number (60500561100561).

Almost surely, 2^{121001122201121} is an apocalyptic number.

It is an amenable number.

121001122201121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121001122201121 is an equidigital number, since it uses as much as digits as its factorization.

121001122201121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121001122201121 its reverse (121102221100121), we get a palindrome (242103343301242).

The spelling of 121001122201121 in words is "one hundred twenty-one trillion, one billion, one hundred twenty-two million, two hundred one thousand, one hundred twenty-one".