210221120010 has 128 divisors (see below), whose sum is σ = 562018155264. Its totient is φ = 49896898560.

The previous prime is 210221119907. The next prime is 210221120023. The reversal of 210221120010 is 10021122012.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3268482 + ... + 3332178.

It is an arithmetic number, because the mean of its divisors is an integer number (4390766838).

Almost surely, 2^210221120010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210221120010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281009077632).

210221120010 is an abundant number, since it is smaller than the sum of its proper divisors (351797035254).

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

210221120010 is a wasteful number, since it uses less digits than its factorization.

210221120010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63928.

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

Adding to 210221120010 its reverse (10021122012), we get a palindrome (220242242022).

It can be divided in two parts, 2102 and 21120010, that added together give a palindrome (21122112).

The spelling of 210221120010 in words is "two hundred ten billion, two hundred twenty-one million, one hundred twenty thousand, ten".