210220002120 has 32 divisors (see below), whose sum is σ = 630660006720. Its totient is φ = 56058667200.

The previous prime is 210220002101. The next prime is 210220002151. The reversal of 210220002120 is 21200022012.

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 = 210220002096 and 210220002105.

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 7 ways as a sum of consecutive naturals, for example, 875916556 + ... + 875916795.

It is an arithmetic number, because the mean of its divisors is an integer number (19708125210).

Almost surely, 2^210220002120 is an apocalyptic number.

210220002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210220002120 is an abundant number, since it is smaller than the sum of its proper divisors (420440004600).

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

210220002120 is a wasteful number, since it uses less digits than its factorization.

210220002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751833365 (or 1751833361 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 210220002120 its reverse (21200022012), we get a palindrome (231420024132).

The spelling of 210220002120 in words is "two hundred ten billion, two hundred twenty million, two thousand, one hundred twenty".