2021021021113 has 8 divisors (see below), whose sum is σ = 2127893443520. Its totient is φ = 1914198888240.

The previous prime is 2021021021099. The next prime is 2021021021137. The reversal of 2021021021113 is 3111201201202.

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 2021021021113 - 2⁵ = 2021021021081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021021021153) 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, 12489870 + ... + 12650647.

It is an arithmetic number, because the mean of its divisors is an integer number (265986680440).

Almost surely, 2^{2021021021113} is an apocalyptic number.

It is an amenable number.

2021021021113 is a deficient number, since it is larger than the sum of its proper divisors (106872422407).

2021021021113 is a wasteful number, since it uses less digits than its factorization.

2021021021113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25144767.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2021021021113 its reverse (3111201201202), we get a palindrome (5132222222315).

The spelling of 2021021021113 in words is "two trillion, twenty-one billion, twenty-one million, twenty-one thousand, one hundred thirteen".