211122120112 has 20 divisors (see below), whose sum is σ = 409323132000. Its totient is φ = 105490344128.

The previous prime is 211122120091. The next prime is 211122120113. The reversal of 211122120112 is 211021221112.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (211122120113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4395112 + ... + 4442887.

It is an arithmetic number, because the mean of its divisors is an integer number (20466156600).

Almost surely, 2^211122120112 is an apocalyptic number.

It is an amenable number.

211122120112 is a deficient number, since it is larger than the sum of its proper divisors (198201011888).

211122120112 is a wasteful number, since it uses less digits than its factorization.

211122120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839500 (or 8839494 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211122120112 its reverse (211021221112), we get a palindrome (422143341224).

The spelling of 211122120112 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred twenty thousand, one hundred twelve".