11111100011212 has 24 divisors (see below), whose sum is σ = 19654624048304. Its totient is φ = 5495549939712.

The previous prime is 11111100011203. The next prime is 11111100011261. The reversal of 11111100011212 is 21211000111111.

It is a super-3 number, since 3×11111100011212³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11111100011192 and 11111100011201.

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, 6316278 + ... + 7881469.

Almost surely, 2^{11111100011212} is an apocalyptic number.

It is an amenable number.

11111100011212 is a deficient number, since it is larger than the sum of its proper divisors (8543524037092).

11111100011212 is a wasteful number, since it uses less digits than its factorization.

11111100011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14199865 (or 14199863 counting only the distinct ones).

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

Adding to 11111100011212 its reverse (21211000111111), we get a palindrome (32322100122323).

The spelling of 11111100011212 in words is "eleven trillion, one hundred eleven billion, one hundred million, eleven thousand, two hundred twelve".