2021020121202 has 8 divisors (see below), whose sum is σ = 4042040242416. Its totient is φ = 673673373732.

The previous prime is 2021020121191. The next prime is 2021020121233. The reversal of 2021020121202 is 2021210201202.

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

2021020121202 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 168418343428 + ... + 168418343439.

It is an arithmetic number, because the mean of its divisors is an integer number (505255030302).

Almost surely, 2^{2021020121202} is an apocalyptic number.

2021020121202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021020121202 is a wasteful number, since it uses less digits than its factorization.

2021020121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336836686872.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2021020121202 its reverse (2021210201202), we get a palindrome (4042230322404).

The spelling of 2021020121202 in words is "two trillion, twenty-one billion, twenty million, one hundred twenty-one thousand, two hundred two".