221110122200 has 96 divisors (see below), whose sum is σ = 561031792560. Its totient is φ = 80372697600.

The previous prime is 221110122187. The next prime is 221110122203. The reversal of 221110122200 is 2221011122.

It is a super-2 number, since 2×221110122200² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110122203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6135434 + ... + 6171366.

Almost surely, 2^221110122200 is an apocalyptic number.

221110122200 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 221110122200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280515896280).

221110122200 is an abundant number, since it is smaller than the sum of its proper divisors (339921670360).

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

221110122200 is a wasteful number, since it uses less digits than its factorization.

221110122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38757 (or 38748 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 221110122200 its reverse (2221011122), we get a palindrome (223331133322).

The spelling of 221110122200 in words is "two hundred twenty-one billion, one hundred ten million, one hundred twenty-two thousand, two hundred".