4222250521 has 4 divisors (see below), whose sum is σ = 4223129344. Its totient is φ = 4221371700.

The previous prime is 4222250519. The next prime is 4222250533. The reversal of 4222250521 is 1250522224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4222250521 - 2¹ = 4222250519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4222250821) 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 3 ways as a sum of consecutive naturals, for example, 432165 + ... + 441826.

It is an arithmetic number, because the mean of its divisors is an integer number (1055782336).

Almost surely, 2^4222250521 is an apocalyptic number.

It is an amenable number.

4222250521 is a deficient number, since it is larger than the sum of its proper divisors (878823).

4222250521 is an equidigital number, since it uses as much as digits as its factorization.

4222250521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878822.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 4222250521 is about 64978.8467195287. The cubic root of 4222250521 is about 1616.2728062016.

Adding to 4222250521 its reverse (1250522224), we get a palindrome (5472772745).

The spelling of 4222250521 in words is "four billion, two hundred twenty-two million, two hundred fifty thousand, five hundred twenty-one".