223122001 has 4 divisors (see below), whose sum is σ = 223652404. Its totient is φ = 222591600.

The previous prime is 223121947. The next prime is 223122013. The reversal of 223122001 is 100221322.

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 99022401 + 124099600 = 9951^2 + 11140^2 .

It is a cyclic number.

It is not a de Polignac number, because 223122001 - 2¹³ = 223113809 is a prime.

It is a super-3 number, since 3×223122001³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223122401) 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, 264570 + ... + 265411.

It is an arithmetic number, because the mean of its divisors is an integer number (55913101).

Almost surely, 2^223122001 is an apocalyptic number.

It is an amenable number.

223122001 is a deficient number, since it is larger than the sum of its proper divisors (530403).

223122001 is an equidigital number, since it uses as much as digits as its factorization.

223122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530402.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 223122001 is about 14937.2688601364. The cubic root of 223122001 is about 606.5232666675.

Adding to 223122001 its reverse (100221322), we get a palindrome (323343323).

The spelling of 223122001 in words is "two hundred twenty-three million, one hundred twenty-two thousand, one".