11212121196 has 24 divisors (see below), whose sum is σ = 29068462640. Its totient is φ = 3737373696.

The previous prime is 11212121191. The next prime is 11212121209. The reversal of 11212121196 is 69112121211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (11212121191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51907861 + ... + 51908076.

Almost surely, 2^11212121196 is an apocalyptic number.

It is an amenable number.

11212121196 is an abundant number, since it is smaller than the sum of its proper divisors (17856341444).

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

11212121196 is a wasteful number, since it uses less digits than its factorization.

11212121196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103815950 (or 103815942 counting only the distinct ones).

The product of its digits is 432, while the sum is 27.

The spelling of 11212121196 in words is "eleven billion, two hundred twelve million, one hundred twenty-one thousand, one hundred ninety-six".