221010202122200 has 96 divisors (see below), whose sum is σ = 521415255144960. Its totient is φ = 87103884739200.

The previous prime is 221010202122163. The next prime is 221010202122247. The reversal of 221010202122200 is 2221202010122.

It is a happy number.

221010202122200 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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17562587 + ... + 27394613.

It is an arithmetic number, because the mean of its divisors is an integer number (5431408907760).

Almost surely, 2^{221010202122200} is an apocalyptic number.

221010202122200 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 221010202122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260707627572480).

221010202122200 is an abundant number, since it is smaller than the sum of its proper divisors (300405053022760).

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

221010202122200 is a wasteful number, since it uses less digits than its factorization.

221010202122200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9833697 (or 9833688 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 221010202122200 its reverse (2221202010122), we get a palindrome (223231404132322).

The spelling of 221010202122200 in words is "two hundred twenty-one trillion, ten billion, two hundred two million, one hundred twenty-two thousand, two hundred".