222100705 has 8 divisors (see below), whose sum is σ = 275711400. Its totient is φ = 171553536.

The previous prime is 222100691. The next prime is 222100727. The reversal of 222100705 is 507001222.

It can be written as a sum of positive squares in 4 ways, for example, as 1296 + 222099409 = 36^2 + 14903^2 .

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 222100705 - 2⁷ = 222100577 is a prime.

It is a super-2 number, since 2×222100705² = 98657446322994050, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 765720 + ... + 766009.

It is an arithmetic number, because the mean of its divisors is an integer number (34463925).

Almost surely, 2^222100705 is an apocalyptic number.

It is an amenable number.

222100705 is a deficient number, since it is larger than the sum of its proper divisors (53610695).

222100705 is a wasteful number, since it uses less digits than its factorization.

222100705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531763.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 222100705 is about 14903.0434811149. The cubic root of 222100705 is about 605.5964384235.

Adding to 222100705 its reverse (507001222), we get a palindrome (729101927).

The spelling of 222100705 in words is "two hundred twenty-two million, one hundred thousand, seven hundred five".