210220122020 has 24 divisors (see below), whose sum is σ = 441866201784. Its totient is φ = 84011106816.

The previous prime is 210220122017. The next prime is 210220122067. The reversal of 210220122020 is 20221022012.

210220122020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 28832719204 + 181387402816 = 169802^2 + 425896^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210220121986 and 210220122004.

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, 4786469 + ... + 4830188.

It is an arithmetic number, because the mean of its divisors is an integer number (18411091741).

Almost surely, 2^210220122020 is an apocalyptic number.

210220122020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220122020 is an abundant number, since it is smaller than the sum of its proper divisors (231646079764).

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

210220122020 is a wasteful number, since it uses less digits than its factorization.

210220122020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9617759 (or 9617757 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 210220122020 its reverse (20221022012), we get a palindrome (230441144032).

The spelling of 210220122020 in words is "two hundred ten billion, two hundred twenty million, one hundred twenty-two thousand, twenty".