11121212100212 has 12 divisors (see below), whose sum is σ = 19491039636516. Its totient is φ = 5552343632640.

The previous prime is 11121212100197. The next prime is 11121212100253. The reversal of 11121212100212 is 21200121212111.

It can be written as a sum of positive squares in 2 ways, for example, as 6834805007716 + 4286407092496 = 2614346^2 + 2070364^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2065601339 + ... + 2065606722.

It is an arithmetic number, because the mean of its divisors is an integer number (1624253303043).

Almost surely, 2^{11121212100212} is an apocalyptic number.

It is an amenable number.

11121212100212 is a deficient number, since it is larger than the sum of its proper divisors (8369827536304).

11121212100212 is a wasteful number, since it uses less digits than its factorization.

11121212100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4131208738 (or 4131208736 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11121212100212 its reverse (21200121212111), we get a palindrome (32321333312323).

The spelling of 11121212100212 in words is "eleven trillion, one hundred twenty-one billion, two hundred twelve million, one hundred thousand, two hundred twelve".