11212012222209 has 24 divisors (see below), whose sum is σ = 16635493772352. Its totient is φ = 7271494014240.

The previous prime is 11212012222181. The next prime is 11212012222261. The reversal of 11212012222209 is 90222221021211.

11212012222209 is a `hidden beast` number, since 1 + 1 + 212 + 0 + 1 + 222 + 220 + 9 = 666.

It is not a de Polignac number, because 11212012222209 - 2²⁰ = 11212011173633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11212012222289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 602407 + ... + 4773564.

It is an arithmetic number, because the mean of its divisors is an integer number (693145573848).

Almost surely, 2^{11212012222209} is an apocalyptic number.

It is an amenable number.

11212012222209 is a deficient number, since it is larger than the sum of its proper divisors (5423481550143).

11212012222209 is a wasteful number, since it uses less digits than its factorization.

11212012222209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5382277 (or 5382274 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 11212012222209 in words is "eleven trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, two hundred nine".