2021110002121 has 8 divisors (see below), whose sum is σ = 2389489657920. Its totient is φ = 1672642760208.

The previous prime is 2021110002097. The next prime is 2021110002157. The reversal of 2021110002121 is 1212000111202.

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

It is not a de Polignac number, because 2021110002121 - 2³⁹ = 1471354188233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021110002181) 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, 4978103251 + ... + 4978103656.

It is an arithmetic number, because the mean of its divisors is an integer number (298686207240).

Almost surely, 2^{2021110002121} is an apocalyptic number.

It is an amenable number.

2021110002121 is a deficient number, since it is larger than the sum of its proper divisors (368379655799).

2021110002121 is an equidigital number, since it uses as much as digits as its factorization.

2021110002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9956206943.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2021110002121 its reverse (1212000111202), we get a palindrome (3233110113323).

The spelling of 2021110002121 in words is "two trillion, twenty-one billion, one hundred ten million, two thousand, one hundred twenty-one".