210011020221210 has 128 divisors (see below), whose sum is σ = 571726985195520. Its totient is φ = 48943289477376.

The previous prime is 210011020221181. The next prime is 210011020221227. The reversal of 210011020221210 is 12122020110012.

It is a super-3 number, since 3×210011020221210³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 210011020221210.

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, 2778177 + ... + 20681883.

It is an arithmetic number, because the mean of its divisors is an integer number (4466617071840).

Almost surely, 2^{210011020221210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210011020221210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285863492597760).

210011020221210 is an abundant number, since it is smaller than the sum of its proper divisors (361715964974310).

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

210011020221210 is a wasteful number, since it uses less digits than its factorization.

210011020221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17905332.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210011020221210 its reverse (12122020110012), we get a palindrome (222133040331222).

The spelling of 210011020221210 in words is "two hundred ten trillion, eleven billion, twenty million, two hundred twenty-one thousand, two hundred ten".