221010020100210 has 256 divisors, whose sum is σ = 597587620515840. Its totient is φ = 51855355776000.

The previous prime is 221010020100209. The next prime is 221010020100211. The reversal of 221010020100210 is 12001020010122.

221010020100210 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221010020100209) and next prime (221010020100211).

It is not an unprimeable number, because it can be changed into a prime (221010020100211) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 727326169 + ... + 727629971.

It is an arithmetic number, because the mean of its divisors is an integer number (2334326642640).

Almost surely, 2^{221010020100210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221010020100210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298793810257920).

221010020100210 is an abundant number, since it is smaller than the sum of its proper divisors (376577600415630).

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

221010020100210 is a wasteful number, since it uses less digits than its factorization.

221010020100210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304465.

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

Adding to 221010020100210 its reverse (12001020010122), we get a palindrome (233011040110332).

The spelling of 221010020100210 in words is "two hundred twenty-one trillion, ten billion, twenty million, one hundred thousand, two hundred ten".