4221725142 has 16 divisors (see below), whose sum is σ = 8715820032. Its totient is φ = 1361846760.

The previous prime is 4221725099. The next prime is 4221725147. The reversal of 4221725142 is 2415271224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221725147) 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, 11348538 + ... + 11348909.

It is an arithmetic number, because the mean of its divisors is an integer number (544738752).

Almost surely, 2^4221725142 is an apocalyptic number.

4221725142 is an abundant number, since it is smaller than the sum of its proper divisors (4494094890).

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

4221725142 is a wasteful number, since it uses less digits than its factorization.

4221725142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22697483.

The product of its digits is 8960, while the sum is 30.

The square root of 4221725142 is about 64974.8039012047. The cubic root of 4221725142 is about 1616.2057652551.

Adding to 4221725142 its reverse (2415271224), we get a palindrome (6636996366).

The spelling of 4221725142 in words is "four billion, two hundred twenty-one million, seven hundred twenty-five thousand, one hundred forty-two".