4121221444 has 6 divisors (see below), whose sum is σ = 7212137534. Its totient is φ = 2060610720.

The previous prime is 4121221409. The next prime is 4121221453. The reversal of 4121221444 is 4441221214.

It is a happy number.

4121221444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4111374400 + 9847044 = 64120^2 + 3138^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515152677 + ... + 515152684.

Almost surely, 2^4121221444 is an apocalyptic number.

It is an amenable number.

4121221444 is a deficient number, since it is larger than the sum of its proper divisors (3090916090).

4121221444 is a wasteful number, since it uses less digits than its factorization.

4121221444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030305365 (or 1030305363 counting only the distinct ones).

The product of its digits is 2048, while the sum is 25.

The square root of 4121221444 is about 64196.7401353059. The cubic root of 4121221444 is about 1603.2773245688.

Adding to 4121221444 its reverse (4441221214), we get a palindrome (8562442658).

The spelling of 4121221444 in words is "four billion, one hundred twenty-one million, two hundred twenty-one thousand, four hundred forty-four".