210401004220 has 48 divisors (see below), whose sum is σ = 510363086688. Its totient is φ = 72008898560.

The previous prime is 210401004173. The next prime is 210401004259. The reversal of 210401004220 is 22400104012.

210401004220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210401004194 and 210401004203.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 28124737 + ... + 28132216.

It is an arithmetic number, because the mean of its divisors is an integer number (10632564306).

Almost surely, 2^210401004220 is an apocalyptic number.

210401004220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210401004220 is an abundant number, since it is smaller than the sum of its proper divisors (299962082468).

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

210401004220 is a wasteful number, since it uses less digits than its factorization.

210401004220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56256990 (or 56256988 counting only the distinct ones).

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

Adding to 210401004220 its reverse (22400104012), we get a palindrome (232801108232).

The spelling of 210401004220 in words is "two hundred ten billion, four hundred one million, four thousand, two hundred twenty".