121012101120121 has 2 divisors, whose sum is σ = 121012101120122. Its totient is φ = 121012101120120.

The previous prime is 121012101120047. The next prime is 121012101120139. The reversal of 121012101120121 is 121021101210121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87407634132025 + 33604466988096 = 9349205^2 + 5796936^2 .

It is a cyclic number.

It is not a de Polignac number, because 121012101120121 - 2¹⁹ = 121012100595833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121012101120095 and 121012101120104.

It is not a weakly prime, because it can be changed into another prime (121012101820121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506050560060 + 60506050560061.

It is an arithmetic number, because the mean of its divisors is an integer number (60506050560061).

Almost surely, 2^{121012101120121} is an apocalyptic number.

It is an amenable number.

121012101120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121012101120121 is an equidigital number, since it uses as much as digits as its factorization.

121012101120121 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 16.

Adding to 121012101120121 its reverse (121021101210121), we get a palindrome (242033202330242).

The spelling of 121012101120121 in words is "one hundred twenty-one trillion, twelve billion, one hundred one million, one hundred twenty thousand, one hundred twenty-one".