11212121000108 has 12 divisors (see below), whose sum is σ = 22424242000272. Its totient is φ = 4805194714320.

The previous prime is 11212121000107. The next prime is 11212121000141. The reversal of 11212121000108 is 80100012121211.

It is a happy number.

11212121000108 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 11212121000108.

It is not an unprimeable number, because it can be changed into a prime (11212121000107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200216446403 + ... + 200216446458.

It is an arithmetic number, because the mean of its divisors is an integer number (1868686833356).

Almost surely, 2^{11212121000108} is an apocalyptic number.

It is an amenable number.

11212121000108 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11212121000108 is a wasteful number, since it uses less digits than its factorization.

11212121000108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400432892872 (or 400432892870 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 11212121000108 its reverse (80100012121211), we get a palindrome (91312133121319).

The spelling of 11212121000108 in words is "eleven trillion, two hundred twelve billion, one hundred twenty-one million, one hundred eight", and thus it is an aban number.