11212122021100 has 144 divisors (see below), whose sum is σ = 32667262661376. Its totient is φ = 3225865248000.

The previous prime is 11212122021073. The next prime is 11212122021157. The reversal of 11212122021100 is 112022121211.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55904506 + ... + 56104705.

It is an arithmetic number, because the mean of its divisors is an integer number (226855990704).

Almost surely, 2^{11212122021100} is an apocalyptic number.

11212122021100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212122021100 is an abundant number, since it is smaller than the sum of its proper divisors (21455140640276).

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

11212122021100 is a wasteful number, since it uses less digits than its factorization.

11212122021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112009256 (or 112009249 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11212122021100 its reverse (112022121211), we get a palindrome (11324144142311).

The spelling of 11212122021100 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-two million, twenty-one thousand, one hundred".