222230401 has 4 divisors (see below), whose sum is σ = 224430804. Its totient is φ = 220030000.

The previous prime is 222230387. The next prime is 222230453. The reversal of 222230401 is 104032222.

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 130530625 + 91699776 = 11425^2 + 9576^2 .

It is a cyclic number.

It is not a de Polignac number, because 222230401 - 2¹⁷ = 222099329 is a prime.

It is a super-2 number, since 2×222230401² = 98772702257241602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222230461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1100050 + ... + 1100251.

It is an arithmetic number, because the mean of its divisors is an integer number (56107701).

Almost surely, 2^222230401 is an apocalyptic number.

It is an amenable number.

222230401 is a deficient number, since it is larger than the sum of its proper divisors (2200403).

222230401 is a wasteful number, since it uses less digits than its factorization.

222230401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200402.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 222230401 is about 14907.3941720208. The cubic root of 222230401 is about 605.7142950990.

Adding to 222230401 its reverse (104032222), we get a palindrome (326262623).

It can be divided in two parts, 2222 and 30401, that added together give a palindrome (32623).

The spelling of 222230401 in words is "two hundred twenty-two million, two hundred thirty thousand, four hundred one".