4221222221224 has 16 divisors (see below), whose sum is σ = 7914828381300. Its totient is φ = 2110601319552.

The previous prime is 4221222221213. The next prime is 4221222221287.

It is a happy number.

4221222221224 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 4199704265124 + 21517956100 = 2049318^2 + 146690^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 4221222221192 and 4221222221201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806572 + ... + 3015460.

Almost surely, 2^{4221222221224} is an apocalyptic number.

It is an amenable number.

4221222221224 is a deficient number, since it is larger than the sum of its proper divisors (3693606160076).

4221222221224 is a wasteful number, since it uses less digits than its factorization.

4221222221224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447772 (or 2447768 counting only the distinct ones).

The product of its digits is 8192, while the sum is 28.

The spelling of 4221222221224 in words is "four trillion, two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twenty-four".