2222011221100 has 216 divisors, whose sum is σ = 5388324687648. Its totient is φ = 794640000000.

The previous prime is 2222011221091. The next prime is 2222011221181. The reversal of 2222011221100 is 11221102222.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 184531080 + ... + 184543120.

It is an arithmetic number, because the mean of its divisors is an integer number (24945947628).

Almost surely, 2^{2222011221100} is an apocalyptic number.

2222011221100 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 2222011221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2694162343824).

2222011221100 is an abundant number, since it is smaller than the sum of its proper divisors (3166313466548).

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

2222011221100 is a wasteful number, since it uses less digits than its factorization.

2222011221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12329 (or 12311 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2222011221100 its reverse (11221102222), we get a palindrome (2233232323322).

It can be divided in two parts, 222201122 and 1100, that added together give a palindrome (222202222).

The spelling of 2222011221100 in words is "two trillion, two hundred twenty-two billion, eleven million, two hundred twenty-one thousand, one hundred".