121000020000121 has 16 divisors (see below), whose sum is σ = 123437103444864. Its totient is φ = 118581574535424.

The previous prime is 121000020000059. The next prime is 121000020000131.

121000020000121 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 121000020000121 - 2²³ = 121000011611513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121000020000098 and 121000020000107.

It is not an unprimeable number, because it can be changed into a prime (121000020000131) 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, 216620236 + ... + 217178098.

It is an arithmetic number, because the mean of its divisors is an integer number (7714818965304).

Almost surely, 2^{121000020000121} is an apocalyptic number.

It is an amenable number.

121000020000121 is a deficient number, since it is larger than the sum of its proper divisors (2437083444743).

121000020000121 is a wasteful number, since it uses less digits than its factorization.

121000020000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574560.

The product of its (nonzero) digits is 8, while the sum is 10.

The spelling of 121000020000121 in words is "one hundred twenty-one trillion, twenty million, one hundred twenty-one", and thus it is an aban number.