210211002120 has 64 divisors (see below), whose sum is σ = 720723438720. Its totient is φ = 48048228864.

The previous prime is 210211002091. The next prime is 210211002143. The reversal of 210211002120 is 21200112012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210211002096 and 210211002105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125124757 + ... + 125126436.

It is an arithmetic number, because the mean of its divisors is an integer number (11261303730).

Almost surely, 2^210211002120 is an apocalyptic number.

210211002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210211002120 is an abundant number, since it is smaller than the sum of its proper divisors (510512436600).

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

210211002120 is a wasteful number, since it uses less digits than its factorization.

210211002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250251214 (or 250251210 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210211002120 its reverse (21200112012), we get a palindrome (231411114132).

The spelling of 210211002120 in words is "two hundred ten billion, two hundred eleven million, two thousand, one hundred twenty".