211122222112 has 24 divisors (see below), whose sum is σ = 415801962576. Its totient is φ = 105521723712.

The previous prime is 211122222071. The next prime is 211122222133. The reversal of 211122222112 is 211222221112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211122222112.

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, 1143658 + ... + 1315369.

It is an arithmetic number, because the mean of its divisors is an integer number (17325081774).

Almost surely, 2^211122222112 is an apocalyptic number.

It is an amenable number.

211122222112 is a deficient number, since it is larger than the sum of its proper divisors (204679740464).

211122222112 is a wasteful number, since it uses less digits than its factorization.

211122222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2461720 (or 2461712 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

Adding to 211122222112 its reverse (211222221112), we get a palindrome (422344443224).

The spelling of 211122222112 in words is "two hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred twelve".