222122505 has 32 divisors (see below), whose sum is σ = 388725120. Its totient is φ = 107412480.

The previous prime is 222122473. The next prime is 222122557. The reversal of 222122505 is 505221222.

It is not a de Polignac number, because 222122505 - 2⁵ = 222122473 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 69891 + ... + 72999.

It is an arithmetic number, because the mean of its divisors is an integer number (12147660).

Almost surely, 2^222122505 is an apocalyptic number.

It is an amenable number.

222122505 is a deficient number, since it is larger than the sum of its proper divisors (166602615).

222122505 is a wasteful number, since it uses less digits than its factorization.

222122505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 222122505 is about 14903.7748573977. The cubic root of 222122505 is about 605.6162516136.

Adding to 222122505 its reverse (505221222), we get a palindrome (727343727).

The spelling of 222122505 in words is "two hundred twenty-two million, one hundred twenty-two thousand, five hundred five".