202102000220020 has 12 divisors (see below), whose sum is σ = 424414200462084. Its totient is φ = 80840800088000.

The previous prime is 202102000220011. The next prime is 202102000220039. The reversal of 202102000220020 is 20022000201202.

It can be written as a sum of positive squares in 2 ways, for example, as 30477223101924 + 171624777118096 = 5520618^2 + 13100564^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5052550005481 + ... + 5052550005520.

It is an arithmetic number, because the mean of its divisors is an integer number (35367850038507).

Almost surely, 2^{202102000220020} is an apocalyptic number.

202102000220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202102000220020 is an abundant number, since it is smaller than the sum of its proper divisors (222312200242064).

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

202102000220020 is a wasteful number, since it uses less digits than its factorization.

202102000220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10105100011010 (or 10105100011008 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 202102000220020 its reverse (20022000201202), we get a palindrome (222124000421222).

The spelling of 202102000220020 in words is "two hundred two trillion, one hundred two billion, two hundred twenty thousand, twenty".