2012110112222 has 72 divisors (see below), whose sum is σ = 3850062890544. Its totient is φ = 783620431104.

The previous prime is 2012110112191. The next prime is 2012110112261. The reversal of 2012110112222 is 2222110112102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2012110112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 683063 + ... + 2119149.

It is an arithmetic number, because the mean of its divisors is an integer number (53473095702).

Almost surely, 2^{2012110112222} is an apocalyptic number.

2012110112222 is a deficient number, since it is larger than the sum of its proper divisors (1837952778322).

2012110112222 is a wasteful number, since it uses less digits than its factorization.

2012110112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1436178 (or 1436142 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2012110112222 its reverse (2222110112102), we get a palindrome (4234220224324).

The spelling of 2012110112222 in words is "two trillion, twelve billion, one hundred ten million, one hundred twelve thousand, two hundred twenty-two".