1222404185 has 16 divisors (see below), whose sum is σ = 1507161600. Its totient is φ = 951415296.

The previous prime is 1222404173. The next prime is 1222404191. The reversal of 1222404185 is 5814042221.

It is a cyclic number.

It is not a de Polignac number, because 1222404185 - 2¹⁴ = 1222387801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7256 + ... + 49974.

It is an arithmetic number, because the mean of its divisors is an integer number (94197600).

Almost surely, 2^1222404185 is an apocalyptic number.

It is an amenable number.

1222404185 is a deficient number, since it is larger than the sum of its proper divisors (284757415).

1222404185 is an equidigital number, since it uses as much as digits as its factorization.

1222404185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42880.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 1222404185 is about 34962.8972626698. The cubic root of 1222404185 is about 1069.2311666254.

The spelling of 1222404185 in words is "one billion, two hundred twenty-two million, four hundred four thousand, one hundred eighty-five".