212112031122 has 48 divisors (see below), whose sum is σ = 460835593920. Its totient is φ = 70510483296.

The previous prime is 212112031091. The next prime is 212112031123. The reversal of 212112031122 is 221130211212.

212112031122 is a `hidden beast` number, since 212 + 1 + 120 + 311 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 212112031095 and 212112031104.

It is not an unprimeable number, because it can be changed into a prime (212112031123) 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, 11249779 + ... + 11268617.

It is an arithmetic number, because the mean of its divisors is an integer number (9600741540).

Almost surely, 2^212112031122 is an apocalyptic number.

212112031122 is an abundant number, since it is smaller than the sum of its proper divisors (248723562798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212112031122 is a wasteful number, since it uses less digits than its factorization.

212112031122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20527 (or 20524 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 212112031122 its reverse (221130211212), we get a palindrome (433242242334).

The spelling of 212112031122 in words is "two hundred twelve billion, one hundred twelve million, thirty-one thousand, one hundred twenty-two".