12011320220100 has 72 divisors (see below), whose sum is σ = 34770244957728. Its totient is φ = 3201406579200.

The previous prime is 12011320220083. The next prime is 12011320220111. The reversal of 12011320220100 is 102202311021.

It is a super-2 number, since 2×12011320220100² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12011320220100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9478821 + ... + 10671020.

Almost surely, 2^{12011320220100} is an apocalyptic number.

12011320220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12011320220100 is an abundant number, since it is smaller than the sum of its proper divisors (22758924737628).

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

12011320220100 is a wasteful number, since it uses less digits than its factorization.

12011320220100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20151845 (or 20151838 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12011320220100 its reverse (102202311021), we get a palindrome (12113522531121).

The spelling of 12011320220100 in words is "twelve trillion, eleven billion, three hundred twenty million, two hundred twenty thousand, one hundred".