121486684121 has 4 divisors (see below), whose sum is σ = 132530928144. Its totient is φ = 110442440100.

The previous prime is 121486684079. The next prime is 121486684141.

121486684121 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121486684121 - 2³⁰ = 120412942297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121486684141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5522121995 + ... + 5522122016.

It is an arithmetic number, because the mean of its divisors is an integer number (33132732036).

Almost surely, 2^121486684121 is an apocalyptic number.

121486684121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121486684121 is a deficient number, since it is larger than the sum of its proper divisors (11044244023).

121486684121 is a wasteful number, since it uses less digits than its factorization.

121486684121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11044244022.

The product of its digits is 147456, while the sum is 44.

The spelling of 121486684121 in words is "one hundred twenty-one billion, four hundred eighty-six million, six hundred eighty-four thousand, one hundred twenty-one".