202122212102020 has 96 divisors (see below), whose sum is σ = 487580528236032. Its totient is φ = 68943762951168.

The previous prime is 202122212101981. The next prime is 202122212102071. The reversal of 202122212102020 is 20201212221202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 573680952 + ... + 574033168.

It is an arithmetic number, because the mean of its divisors is an integer number (5078963835792).

Almost surely, 2^{202122212102020} is an apocalyptic number.

202122212102020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202122212102020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243790264118016).

202122212102020 is an abundant number, since it is smaller than the sum of its proper divisors (285458316134012).

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

202122212102020 is a wasteful number, since it uses less digits than its factorization.

202122212102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373237 (or 373235 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202122212102020 its reverse (20201212221202), we get a palindrome (222323424323222).

The spelling of 202122212102020 in words is "two hundred two trillion, one hundred twenty-two billion, two hundred twelve million, one hundred two thousand, twenty".