121202010012121 has 24 divisors (see below), whose sum is σ = 131831934459264. Its totient is φ = 111373922204160.

The previous prime is 121202010012113. The next prime is 121202010012269. The reversal of 121202010012121 is 121210010202121.

It is not a de Polignac number, because 121202010012121 - 2³ = 121202010012113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121202010012095 and 121202010012104.

It is not an unprimeable number, because it can be changed into a prime (121202013012121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26560420 + ... + 30787333.

It is an arithmetic number, because the mean of its divisors is an integer number (5492997269136).

Almost surely, 2^{121202010012121} is an apocalyptic number.

It is an amenable number.

121202010012121 is a deficient number, since it is larger than the sum of its proper divisors (10629924447143).

121202010012121 is a wasteful number, since it uses less digits than its factorization.

121202010012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57347961 (or 57347944 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121202010012121 its reverse (121210010202121), we get a palindrome (242412020214242).

The spelling of 121202010012121 in words is "one hundred twenty-one trillion, two hundred two billion, ten million, twelve thousand, one hundred twenty-one".