2111110111212 has 24 divisors (see below), whose sum is σ = 4927081935216. Its totient is φ = 703537892928.

The previous prime is 2111110111211. The next prime is 2111110111213. The reversal of 2111110111212 is 2121110111112.

It is an interprime number because it is at equal distance from previous prime (2111110111211) and next prime (2111110111213).

It is a junction number, because it is equal to n+sod(n) for n = 2111110111191 and 2111110111200.

It is not an unprimeable number, because it can be changed into a prime (2111110111211) 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, 20631523 + ... + 20733594.

It is an arithmetic number, because the mean of its divisors is an integer number (205295080634).

Almost surely, 2^{2111110111212} is an apocalyptic number.

It is an amenable number.

2111110111212 is an abundant number, since it is smaller than the sum of its proper divisors (2815971824004).

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

2111110111212 is a wasteful number, since it uses less digits than its factorization.

2111110111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41369377 (or 41369375 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 2111110111212 its reverse (2121110111112), we get a palindrome (4232220222324).

The spelling of 2111110111212 in words is "two trillion, one hundred eleven billion, one hundred ten million, one hundred eleven thousand, two hundred twelve".