221112222002200 has 192 divisors, whose sum is σ = 521978962770720. Its totient is φ = 87100406784000.

The previous prime is 221112222002179. The next prime is 221112222002209. The reversal of 221112222002200 is 2200222211122.

It is a super-2 number, since 2×221112222002200² (a number of 29 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221112222002209) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1634398560 + ... + 1634533840.

Almost surely, 2^{221112222002200} is an apocalyptic number.

221112222002200 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 221112222002200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260989481385360).

221112222002200 is an abundant number, since it is smaller than the sum of its proper divisors (300866740768520).

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

221112222002200 is a wasteful number, since it uses less digits than its factorization.

221112222002200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135918 (or 135909 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221112222002200 its reverse (2200222211122), we get a palindrome (223312444213322).

The spelling of 221112222002200 in words is "two hundred twenty-one trillion, one hundred twelve billion, two hundred twenty-two million, two thousand, two hundred".