4221151601 has 4 divisors (see below), whose sum is σ = 4221330432. Its totient is φ = 4220972772.

The previous prime is 4221151589. The next prime is 4221151603. The reversal of 4221151601 is 1061511224.

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 4221151601 - 2³⁰ = 3147409777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4221151603) 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, 47441 + ... + 103406.

It is an arithmetic number, because the mean of its divisors is an integer number (1055332608).

Almost surely, 2^4221151601 is an apocalyptic number.

It is an amenable number.

4221151601 is a deficient number, since it is larger than the sum of its proper divisors (178831).

4221151601 is a wasteful number, since it uses less digits than its factorization.

4221151601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178830.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 4221151601 is about 64970.3901866073. The cubic root of 4221151601 is about 1616.1325722499.

Adding to 4221151601 its reverse (1061511224), we get a palindrome (5282662825).

The spelling of 4221151601 in words is "four billion, two hundred twenty-one million, one hundred fifty-one thousand, six hundred one".