4220228401 has 4 divisors (see below), whose sum is σ = 4222852900. Its totient is φ = 4217603904.

The previous prime is 4220228381. The next prime is 4220228407. The reversal of 4220228401 is 1048220224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2445797025 + 1774431376 = 49455^2 + 42124^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220228401 - 2⁹ = 4220227889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4220228407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1309836 + ... + 1313053.

It is an arithmetic number, because the mean of its divisors is an integer number (1055713225).

Almost surely, 2^4220228401 is an apocalyptic number.

It is an amenable number.

4220228401 is a deficient number, since it is larger than the sum of its proper divisors (2624499).

4220228401 is a wasteful number, since it uses less digits than its factorization.

4220228401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2624498.

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 4220228401 is about 64963.2850231575. The cubic root of 4220228401 is about 1616.0147432373.

Adding to 4220228401 its reverse (1048220224), we get a palindrome (5268448625).

The spelling of 4220228401 in words is "four billion, two hundred twenty million, two hundred twenty-eight thousand, four hundred one".