2221111210112 has 32 divisors (see below), whose sum is σ = 4577451720300. Its totient is φ = 1072260582400.

The previous prime is 2221111210111. The next prime is 2221111210187. The reversal of 2221111210112 is 2110121111222.

It can be written as a sum of positive squares in 2 ways, for example, as 2191892094016 + 29219116096 = 1480504^2 + 170936^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×2221111210112² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2221111210111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299176139 + ... + 299183562.

Almost surely, 2^{2221111210112} is an apocalyptic number.

It is an amenable number.

2221111210112 is an abundant number, since it is smaller than the sum of its proper divisors (2356340510188).

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

2221111210112 is an equidigital number, since it uses as much as digits as its factorization.

2221111210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598359744 (or 598359732 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2221111210112 its reverse (2110121111222), we get a palindrome (4331232321334).

The spelling of 2221111210112 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred ten thousand, one hundred twelve".