12021110221100 has 36 divisors (see below), whose sum is σ = 26089986269424. Its totient is φ = 4807674118080.

The previous prime is 12021110221093. The next prime is 12021110221121. The reversal of 12021110221100 is 112201112021.

It is a super-3 number, since 3×12021110221100³ (a number of 40 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8996807 + ... + 10246206.

Almost surely, 2^{12021110221100} is an apocalyptic number.

12021110221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021110221100 is an abundant number, since it is smaller than the sum of its proper divisors (14068876048324).

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

12021110221100 is a wasteful number, since it uses less digits than its factorization.

12021110221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19249274 (or 19249267 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12021110221100 its reverse (112201112021), we get a palindrome (12133311333121).

The spelling of 12021110221100 in words is "twelve trillion, twenty-one billion, one hundred ten million, two hundred twenty-one thousand, one hundred".