202022020102021 has 8 divisors (see below), whose sum is σ = 235594192539200. Its totient is φ = 173161731515724.

The previous prime is 202022020102003. The next prime is 202022020102027. The reversal of 202022020102021 is 120201020220202.

It is not a de Polignac number, because 202022020102021 - 2¹⁹ = 202022019577733 is a prime.

It is a super-2 number, since 2×202022020102021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202022020101986 and 202022020102004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202022020102027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294492740331 + ... + 294492741016.

It is an arithmetic number, because the mean of its divisors is an integer number (29449274067400).

Almost surely, 2^{202022020102021} is an apocalyptic number.

It is an amenable number.

202022020102021 is a deficient number, since it is larger than the sum of its proper divisors (33572172437179).

202022020102021 is an frugal number, since it uses more digits than its factorization.

202022020102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588985481368 (or 588985481354 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 202022020102021 its reverse (120201020220202), we get a palindrome (322223040322223).

The spelling of 202022020102021 in words is "two hundred two trillion, twenty-two billion, twenty million, one hundred two thousand, twenty-one".