121021303120121 has 2 divisors, whose sum is σ = 121021303120122. Its totient is φ = 121021303120120.

The previous prime is 121021303120057. The next prime is 121021303120229.

121021303120121 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97835046145600 + 23186256974521 = 9891160^2 + 4815211^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 121021303120121 - 2⁶ = 121021303120057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121021303120093 and 121021303120102.

It is not a weakly prime, because it can be changed into another prime (121021303180121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60510651560060 + 60510651560061.

It is an arithmetic number, because the mean of its divisors is an integer number (60510651560061).

Almost surely, 2^{121021303120121} is an apocalyptic number.

It is an amenable number.

121021303120121 is a deficient number, since it is larger than the sum of its proper divisors (1).

121021303120121 is an equidigital number, since it uses as much as digits as its factorization.

121021303120121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

It can be divided in two parts, 12102130 and 3120121, that added together give a palindrome (15222251).

The spelling of 121021303120121 in words is "one hundred twenty-one trillion, twenty-one billion, three hundred three million, one hundred twenty thousand, one hundred twenty-one".