4222221442 has 4 divisors (see below), whose sum is σ = 6333332166. Its totient is φ = 2111110720.

The previous prime is 4222221433. The next prime is 4222221461. The reversal of 4222221442 is 2441222224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3301766521 + 920454921 = 57461^2 + 30339^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1055555359 + ... + 1055555362.

Almost surely, 2^4222221442 is an apocalyptic number.

4222221442 is a deficient number, since it is larger than the sum of its proper divisors (2111110724).

4222221442 is a wasteful number, since it uses less digits than its factorization.

4222221442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2111110723.

The product of its digits is 4096, while the sum is 25.

The square root of 4222221442 is about 64978.6229617095. The cubic root of 4222221442 is about 1616.2690957234.

Adding to 4222221442 its reverse (2441222224), we get a palindrome (6663443666).

The spelling of 4222221442 in words is "four billion, two hundred twenty-two million, two hundred twenty-one thousand, four hundred forty-two".