11212220220200 has 24 divisors (see below), whose sum is σ = 26068412012430. Its totient is φ = 4484888088000.

The previous prime is 11212220220163. The next prime is 11212220220259. The reversal of 11212220220200 is 202202221211.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9949217360644 + 1263002859556 = 3154238^2 + 1123834^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28030550351 + ... + 28030550750.

Almost surely, 2^{11212220220200} is an apocalyptic number.

11212220220200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212220220200 is an abundant number, since it is smaller than the sum of its proper divisors (14856191792230).

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

11212220220200 is a wasteful number, since it uses less digits than its factorization.

11212220220200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56061101117 (or 56061101108 counting only the distinct ones).

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

Adding to 11212220220200 its reverse (202202221211), we get a palindrome (11414422441411).

The spelling of 11212220220200 in words is "eleven trillion, two hundred twelve billion, two hundred twenty million, two hundred twenty thousand, two hundred".