210222020220 has 48 divisors (see below), whose sum is σ = 608918960160. Its totient is φ = 54126128896.

The previous prime is 210222020209. The next prime is 210222020257. The reversal of 210222020220 is 22020222012.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 210222020220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60406887 + ... + 60410366.

It is an arithmetic number, because the mean of its divisors is an integer number (12685811670).

Almost surely, 2^210222020220 is an apocalyptic number.

210222020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210222020220 is an abundant number, since it is smaller than the sum of its proper divisors (398696939940).

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

210222020220 is a wasteful number, since it uses less digits than its factorization.

210222020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120817294 (or 120817292 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 210222020220 its reverse (22020222012), we get a palindrome (232242242232).

The spelling of 210222020220 in words is "two hundred ten billion, two hundred twenty-two million, twenty thousand, two hundred twenty".