4221223412 has 24 divisors (see below), whose sum is σ = 8733567360. Its totient is φ = 1746712800.

The previous prime is 4221223411. The next prime is 4221223451. The reversal of 4221223412 is 2143221224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221223411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2598464 + ... + 2600087.

It is an arithmetic number, because the mean of its divisors is an integer number (363898640).

Almost surely, 2^4221223412 is an apocalyptic number.

It is an amenable number.

4221223412 is an abundant number, since it is smaller than the sum of its proper divisors (4512343948).

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

4221223412 is a wasteful number, since it uses less digits than its factorization.

4221223412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5198591 (or 5198589 counting only the distinct ones).

The product of its digits is 1536, while the sum is 23.

The square root of 4221223412 is about 64970.9428283136. The cubic root of 4221223412 is about 1616.1417368452.

Adding to 4221223412 its reverse (2143221224), we get a palindrome (6364444636).

The spelling of 4221223412 in words is "four billion, two hundred twenty-one million, two hundred twenty-three thousand, four hundred twelve".