2221110012 has 24 divisors (see below), whose sum is σ = 5653734912. Its totient is φ = 673063600.

The previous prime is 2221109983. The next prime is 2221110019. The reversal of 2221110012 is 2100111222.

2221110012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2221110012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221110019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8413164 + ... + 8413427.

It is an arithmetic number, because the mean of its divisors is an integer number (235572288).

Almost surely, 2^2221110012 is an apocalyptic number.

2221110012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2221110012 is an abundant number, since it is smaller than the sum of its proper divisors (3432624900).

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

2221110012 is a wasteful number, since it uses less digits than its factorization.

2221110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16826609 (or 16826607 counting only the distinct ones).

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

The square root of 2221110012 is about 47128.6538318251. The cubic root of 2221110012 is about 1304.7381362685.

Adding to 2221110012 its reverse (2100111222), we get a palindrome (4321221234).

It can be divided in two parts, 22211 and 10012, that added together give a palindrome (32223).

The spelling of 2221110012 in words is "two billion, two hundred twenty-one million, one hundred ten thousand, twelve".