228100001 has 8 divisors (see below), whose sum is σ = 231189504. Its totient is φ = 225030960.

The previous prime is 228099983. The next prime is 228100007. The reversal of 228100001 is 100001822.

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 228100001 - 2²⁶ = 160991137 is a prime.

It is a super-2 number, since 2×228100001² = 104059220912400002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228100007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18026 + ... + 27948.

It is an arithmetic number, because the mean of its divisors is an integer number (28898688).

Almost surely, 2^228100001 is an apocalyptic number.

It is an amenable number.

228100001 is a deficient number, since it is larger than the sum of its proper divisors (3089503).

228100001 is a wasteful number, since it uses less digits than its factorization.

228100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10231.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 228100001 is about 15102.9798715353. The cubic root of 228100001 is about 611.0007768104. Note that the first 3 decimals are identical.

Adding to 228100001 its reverse (100001822), we get a palindrome (328101823).

The spelling of 228100001 in words is "two hundred twenty-eight million, one hundred thousand, one".