2221110111012 has 192 divisors, whose sum is σ = 5799002388480. Its totient is φ = 656968790016.

The previous prime is 2221110110977. The next prime is 2221110111013. The reversal of 2221110111012 is 2101110111222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2221110110982 and 2221110111000.

It is not an unprimeable number, because it can be changed into a prime (2221110111013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1549971448 + ... + 1549972880.

It is an arithmetic number, because the mean of its divisors is an integer number (30203137440).

Almost surely, 2^{2221110111012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221110111012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2899501194240).

2221110111012 is an abundant number, since it is smaller than the sum of its proper divisors (3577892277468).

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

2221110111012 is a wasteful number, since it uses less digits than its factorization.

2221110111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2221110111012 its reverse (2101110111222), we get a palindrome (4322220222234).

The spelling of 2221110111012 in words is "two trillion, two hundred twenty-one billion, one hundred ten million, one hundred eleven thousand, twelve".