121242141242121 has 16 divisors (see below), whose sum is σ = 164200425318720. Its totient is φ = 79565227435200.

The previous prime is 121242141242077. The next prime is 121242141242129.

121242141242121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121242141242121 - 2⁷ = 121242141241993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121242141242129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156418911 + ... + 1156523748.

It is an arithmetic number, because the mean of its divisors is an integer number (10262526582420).

Almost surely, 2^{121242141242121} is an apocalyptic number.

It is an amenable number.

121242141242121 is a deficient number, since it is larger than the sum of its proper divisors (42958284076599).

121242141242121 is a wasteful number, since it uses less digits than its factorization.

121242141242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312942936.

The product of its digits is 4096, while the sum is 30.

The spelling of 121242141242121 in words is "one hundred twenty-one trillion, two hundred forty-two billion, one hundred forty-one million, two hundred forty-two thousand, one hundred twenty-one".