2223123012 has 72 divisors (see below), whose sum is σ = 6138044640. Its totient is φ = 672837120.

The previous prime is 2223123011. The next prime is 2223123013. The reversal of 2223123012 is 2103213222.

It is an interprime number because it is at equal distance from previous prime (2223123011) and next prime (2223123013).

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 (2223123011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 364863 + ... + 370905.

It is an arithmetic number, because the mean of its divisors is an integer number (85250620).

Almost surely, 2^2223123012 is an apocalyptic number.

2223123012 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 2223123012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3069022320).

2223123012 is an abundant number, since it is smaller than the sum of its proper divisors (3914921628).

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

2223123012 is a wasteful number, since it uses less digits than its factorization.

2223123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6993 (or 6988 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2223123012 is about 47150.0054294801. The cubic root of 2223123012 is about 1305.1321802080.

Adding to 2223123012 its reverse (2103213222), we get a palindrome (4326336234).

The spelling of 2223123012 in words is "two billion, two hundred twenty-three million, one hundred twenty-three thousand, twelve".