210442034220 has 96 divisors (see below), whose sum is σ = 643451510016. Its totient is φ = 50964921600.

The previous prime is 210442034219. The next prime is 210442034221. The reversal of 210442034220 is 22430244012.

It is an interprime number because it is at equal distance from previous prime (210442034219) and next prime (210442034221).

It is not an unprimeable number, because it can be changed into a prime (210442034221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 498115 + ... + 817925.

It is an arithmetic number, because the mean of its divisors is an integer number (6702619896).

Almost surely, 2^210442034220 is an apocalyptic number.

210442034220 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 210442034220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (321725755008).

210442034220 is an abundant number, since it is smaller than the sum of its proper divisors (433009475796).

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

210442034220 is a wasteful number, since it uses less digits than its factorization.

210442034220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320831 (or 320829 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 210442034220 its reverse (22430244012), we get a palindrome (232872278232).

The spelling of 210442034220 in words is "two hundred ten billion, four hundred forty-two million, thirty-four thousand, two hundred twenty".