12222020220100 has 18 divisors (see below), whose sum is σ = 26521783877834. Its totient is φ = 4888808088000.

The previous prime is 12222020220073. The next prime is 12222020220119. The reversal of 12222020220100 is 102202022221.

It can be written as a sum of positive squares in 3 ways, for example, as 255720353344 + 11966299866756 = 505688^2 + 3459234^2 .

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, 61110101001 + ... + 61110101200.

Almost surely, 2^{12222020220100} is an apocalyptic number.

12222020220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12222020220100 is an abundant number, since it is smaller than the sum of its proper divisors (14299763657734).

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

12222020220100 is a wasteful number, since it uses less digits than its factorization.

12222020220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122220202215 (or 122220202208 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12222020220100 its reverse (102202022221), we get a palindrome (12324222242321).

The spelling of 12222020220100 in words is "twelve trillion, two hundred twenty-two billion, twenty million, two hundred twenty thousand, one hundred".