2112211122212 has 12 divisors (see below), whose sum is σ = 3815607188736. Its totient is φ = 1022037639720.

The previous prime is 2112211122199. The next prime is 2112211122269. The reversal of 2112211122212 is 2122211122112.

It is a super-2 number, since 2×2112211122212² (a number of 25 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8516980208 + ... + 8516980455.

It is an arithmetic number, because the mean of its divisors is an integer number (317967265728).

Almost surely, 2^{2112211122212} is an apocalyptic number.

It is an amenable number.

2112211122212 is a deficient number, since it is larger than the sum of its proper divisors (1703396066524).

2112211122212 is a wasteful number, since it uses less digits than its factorization.

2112211122212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17033960698 (or 17033960696 counting only the distinct ones).

The product of its digits is 128, while the sum is 20.

Adding to 2112211122212 its reverse (2122211122112), we get a palindrome (4234422244324).

The spelling of 2112211122212 in words is "two trillion, one hundred twelve billion, two hundred eleven million, one hundred twenty-two thousand, two hundred twelve".