121002101011501 has 2 divisors, whose sum is σ = 121002101011502. Its totient is φ = 121002101011500.

The previous prime is 121002101011459. The next prime is 121002101011511. The reversal of 121002101011501 is 105110101200121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68409523710025 + 52592577301476 = 8271005^2 + 7252074^2 .

It is a cyclic number.

It is not a de Polignac number, because 121002101011501 - 2²³ = 121002092622893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121002101011511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501050505750 + 60501050505751.

It is an arithmetic number, because the mean of its divisors is an integer number (60501050505751).

Almost surely, 2^{121002101011501} is an apocalyptic number.

It is an amenable number.

121002101011501 is a deficient number, since it is larger than the sum of its proper divisors (1).

121002101011501 is an equidigital number, since it uses as much as digits as its factorization.

121002101011501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 16.

Adding to 121002101011501 its reverse (105110101200121), we get a palindrome (226112202211622).

The spelling of 121002101011501 in words is "one hundred twenty-one trillion, two billion, one hundred one million, eleven thousand, five hundred one".