12020010100121 has 16 divisors (see below), whose sum is σ = 12132649488960. Its totient is φ = 11907693557760.

The previous prime is 12020010100099. The next prime is 12020010100213. The reversal of 12020010100121 is 12100101002021.

It is a cyclic number.

It is not a de Polignac number, because 12020010100121 - 2⁴² = 7621963589017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020010100421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886882481 + ... + 886896033.

It is an arithmetic number, because the mean of its divisors is an integer number (758290593060).

Almost surely, 2^{12020010100121} is an apocalyptic number.

It is an amenable number.

12020010100121 is a deficient number, since it is larger than the sum of its proper divisors (112639388839).

12020010100121 is a wasteful number, since it uses less digits than its factorization.

12020010100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24856.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12020010100121 its reverse (12100101002021), we get a palindrome (24120111102142).

The spelling of 12020010100121 in words is "twelve trillion, twenty billion, ten million, one hundred thousand, one hundred twenty-one".