2021021210202 has 16 divisors (see below), whose sum is σ = 4042063580160. Its totient is φ = 673670210112.

The previous prime is 2021021210191. The next prime is 2021021210233. The reversal of 2021021210202 is 2020121201202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535143 + ... + 2080485.

It is an arithmetic number, because the mean of its divisors is an integer number (252628973760).

Almost surely, 2^{2021021210202} is an apocalyptic number.

2021021210202 is an abundant number, since it is smaller than the sum of its proper divisors (2021042369958).

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

2021021210202 is a wasteful number, since it uses less digits than its factorization.

2021021210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763317.

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

Adding to 2021021210202 its reverse (2020121201202), we get a palindrome (4041142411404).

The spelling of 2021021210202 in words is "two trillion, twenty-one billion, twenty-one million, two hundred ten thousand, two hundred two".