11011212011212 has 12 divisors (see below), whose sum is σ = 22022424022480. Its totient is φ = 4719090861936.

The previous prime is 11011212011207. The next prime is 11011212011213. The reversal of 11011212011212 is 21211021211011.

11011212011212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11011212011212 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11011212011213) 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, 196628785887 + ... + 196628785942.

Almost surely, 2^{11011212011212} is an apocalyptic number.

It is an amenable number.

11011212011212 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.

11011212011212 is a wasteful number, since it uses less digits than its factorization.

11011212011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393257571840 (or 393257571838 counting only the distinct ones).

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

Adding to 11011212011212 its reverse (21211021211011), we get a palindrome (32222233222223).

The spelling of 11011212011212 in words is "eleven trillion, eleven billion, two hundred twelve million, eleven thousand, two hundred twelve".