211111110100012 has 12 divisors (see below), whose sum is σ = 375500908948816. Its totient is φ = 103825136114640.

The previous prime is 211111110100003. The next prime is 211111110100019. The reversal of 211111110100012 is 210001011111112.

It is a junction number, because it is equal to n+sod(n) for n = 211111110099965 and 211111110100001.

It is not an unprimeable number, because it can be changed into a prime (211111110100019) 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, 432604733568 + ... + 432604734055.

Almost surely, 2^{211111110100012} is an apocalyptic number.

It is an amenable number.

211111110100012 is a deficient number, since it is larger than the sum of its proper divisors (164389798848804).

211111110100012 is a wasteful number, since it uses less digits than its factorization.

211111110100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865209467688 (or 865209467686 counting only the distinct ones).

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

Adding to 211111110100012 its reverse (210001011111112), we get a palindrome (421112121211124).

The spelling of 211111110100012 in words is "two hundred eleven trillion, one hundred eleven billion, one hundred ten million, one hundred thousand, twelve".