2222232012 has 144 divisors (see below), whose sum is σ = 7542243072. Its totient is φ = 532794240.

The previous prime is 2222231987. The next prime is 2222232017. The reversal of 2222232012 is 2102322222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2222232017) 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 47 ways as a sum of consecutive naturals, for example, 5203 + ... + 66869.

It is an arithmetic number, because the mean of its divisors is an integer number (52376688).

Almost surely, 2^2222232012 is an apocalyptic number.

2222232012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2222232012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3771121536).

2222232012 is an abundant number, since it is smaller than the sum of its proper divisors (5320011060).

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

2222232012 is a wasteful number, since it uses less digits than its factorization.

2222232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61708 (or 61703 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2222232012 is about 47140.5559152626. Note that the first 3 decimals coincide. The cubic root of 2222232012 is about 1304.9577966710.

Adding to 2222232012 its reverse (2102322222), we get a palindrome (4324554234).

The spelling of 2222232012 in words is "two billion, two hundred twenty-two million, two hundred thirty-two thousand, twelve".