222231505 has 16 divisors (see below), whose sum is σ = 281217600. Its totient is φ = 168125760.

The previous prime is 222231481. The next prime is 222231511. The reversal of 222231505 is 505132222.

It is not a de Polignac number, because 222231505 - 2²¹ = 220134353 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61026 + ... + 64564.

It is an arithmetic number, because the mean of its divisors is an integer number (17576100).

Almost surely, 2^222231505 is an apocalyptic number.

It is an amenable number.

222231505 is a deficient number, since it is larger than the sum of its proper divisors (58986095).

222231505 is a wasteful number, since it uses less digits than its factorization.

222231505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4224.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 222231505 is about 14907.4312005791. The cubic root of 222231505 is about 605.7152981233.

Adding to 222231505 its reverse (505132222), we get a palindrome (727363727).

The spelling of 222231505 in words is "two hundred twenty-two million, two hundred thirty-one thousand, five hundred five".