12020100020121 has 8 divisors (see below), whose sum is σ = 16031223668160. Its totient is φ = 8011188192752.

The previous prime is 12020100020099. The next prime is 12020100020129. The reversal of 12020100020121 is 12102000102021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12020100020121 - 2¹⁵ = 12020099987353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020100020097 and 12020100020106.

It is not an unprimeable number, because it can be changed into a prime (12020100020129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552942486 + ... + 552964223.

It is an arithmetic number, because the mean of its divisors is an integer number (2003902958520).

Almost surely, 2^{12020100020121} is an apocalyptic number.

It is an amenable number.

12020100020121 is a deficient number, since it is larger than the sum of its proper divisors (4011123648039).

12020100020121 is a wasteful number, since it uses less digits than its factorization.

12020100020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105910335.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12020100020121 its reverse (12102000102021), we get a palindrome (24122100122142).

The spelling of 12020100020121 in words is "twelve trillion, twenty billion, one hundred million, twenty thousand, one hundred twenty-one".