4421111212 has 48 divisors (see below), whose sum is σ = 9157736448. Its totient is φ = 1828290240.

The previous prime is 4421111209. The next prime is 4421111237. The reversal of 4421111212 is 2121111244.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 4421111212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69778 + ... + 117094.

It is an arithmetic number, because the mean of its divisors is an integer number (190786176).

Almost surely, 2^4421111212 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 4421111212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4578868224).

4421111212 is an abundant number, since it is smaller than the sum of its proper divisors (4736625236).

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

4421111212 is a wasteful number, since it uses less digits than its factorization.

4421111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47446 (or 47444 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

The square root of 4421111212 is about 66491.4371329121. The cubic root of 4421111212 is about 1641.2590980308.

Adding to 4421111212 its reverse (2121111244), we get a palindrome (6542222456).

The spelling of 4421111212 in words is "four billion, four hundred twenty-one million, one hundred eleven thousand, two hundred twelve".