210220000 has 120 divisors (see below), whose sum is σ = 540839376. Its totient is φ = 80256000.

The previous prime is 210219983. The next prime is 210220007. The reversal of 210220000 is 22012.

It is a happy number.

210220000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210220007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 459772 + ... + 460228.

Almost surely, 2^210220000 is an apocalyptic number.

210220000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270419688).

210220000 is an abundant number, since it is smaller than the sum of its proper divisors (330619376).

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

210220000 is an equidigital number, since it uses as much as digits as its factorization.

210220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 210220000 is about 14498.9654803369. The cubic root of 210220000 is about 594.5996883638.

Adding to 210220000 its reverse (22012), we get a palindrome (210242012).

The spelling of 210220000 in words is "two hundred ten million, two hundred twenty thousand".