4222401521 has 8 divisors (see below), whose sum is σ = 4786528320. Its totient is φ = 3692464272.

The previous prime is 4222401511. The next prime is 4222401539. The reversal of 4222401521 is 1251042224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4222401521 - 2¹⁴ = 4222385137 is a prime.

It is a super-2 number, since 2×4222401521² = 35657349209086226882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4222401511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8547125 + ... + 8547618.

It is an arithmetic number, because the mean of its divisors is an integer number (598316040).

Almost surely, 2^4222401521 is an apocalyptic number.

It is an amenable number.

4222401521 is a deficient number, since it is larger than the sum of its proper divisors (564126799).

4222401521 is a wasteful number, since it uses less digits than its factorization.

4222401521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17094775.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 4222401521 is about 64980.0086257304. The cubic root of 4222401521 is about 1616.2920735160.

Adding to 4222401521 its reverse (1251042224), we get a palindrome (5473443745).

The spelling of 4222401521 in words is "four billion, two hundred twenty-two million, four hundred one thousand, five hundred twenty-one".