121213141312121 has 16 divisors (see below), whose sum is σ = 124049879002944. Its totient is φ = 118412134873344.

The previous prime is 121213141312097. The next prime is 121213141312183.

121213141312121 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 121213141312121 - 2²² = 121213137117817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121213141312621) 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, 9249131 + ... + 18110016.

It is an arithmetic number, because the mean of its divisors is an integer number (7753117437684).

Almost surely, 2^{121213141312121} is an apocalyptic number.

It is an amenable number.

121213141312121 is a deficient number, since it is larger than the sum of its proper divisors (2836737690823).

121213141312121 is a wasteful number, since it uses less digits than its factorization.

121213141312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27359800.

The product of its digits is 576, while the sum is 26.

The spelling of 121213141312121 in words is "one hundred twenty-one trillion, two hundred thirteen billion, one hundred forty-one million, three hundred twelve thousand, one hundred twenty-one".