11001111011212 has 24 divisors (see below), whose sum is σ = 22093517563040. Its totient is φ = 4695198531840.

The previous prime is 11001111011123. The next prime is 11001111011251. The reversal of 11001111011212 is 21211011110011.

It is a junction number, because it is equal to n+sod(n) for n = 11001111011192 and 11001111011201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815131887 + ... + 815145382.

Almost surely, 2^{11001111011212} is an apocalyptic number.

It is an amenable number.

11001111011212 is an abundant number, since it is smaller than the sum of its proper divisors (11092406551828).

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

11001111011212 is a wasteful number, since it uses less digits than its factorization.

11001111011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630277521 (or 1630277519 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11001111011212 its reverse (21211011110011), we get a palindrome (32212122121223).

The spelling of 11001111011212 in words is "eleven trillion, one billion, one hundred eleven million, eleven thousand, two hundred twelve".