2220111012 has 108 divisors (see below), whose sum is σ = 6360474960. Its totient is φ = 600874848.

The previous prime is 2220110989. The next prime is 2220111017. The reversal of 2220111012 is 2101110222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (2220111017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 207039 + ... + 217497.

Almost surely, 2^2220111012 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 2220111012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3180237480).

2220111012 is an abundant number, since it is smaller than the sum of its proper divisors (4140363948).

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

2220111012 is a wasteful number, since it uses less digits than its factorization.

2220111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518 (or 10490 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2220111012 is about 47118.0539920740. The cubic root of 2220111012 is about 1304.5424940210.

Adding to 2220111012 its reverse (2101110222), we get a palindrome (4321221234).

The spelling of 2220111012 in words is "two billion, two hundred twenty million, one hundred eleven thousand, twelve".