1222194005 has 12 divisors (see below), whose sum is σ = 1557982020. Its totient is φ = 920239104.

The previous prime is 1222193897. The next prime is 1222194041. The reversal of 1222194005 is 5004912221.

It can be written as a sum of positive squares in 6 ways, for example, as 10666756 + 1211527249 = 3266^2 + 34807^2 .

It is not a de Polignac number, because 1222194005 - 2¹⁸ = 1221931861 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 421460 + ... + 424349.

It is an arithmetic number, because the mean of its divisors is an integer number (129831835).

Almost surely, 2^1222194005 is an apocalyptic number.

It is an amenable number.

1222194005 is a deficient number, since it is larger than the sum of its proper divisors (335788015).

1222194005 is an equidigital number, since it uses as much as digits as its factorization.

1222194005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845848 (or 845831 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1222194005 is about 34959.8913756894. The cubic root of 1222194005 is about 1069.1698819617.

The spelling of 1222194005 in words is "one billion, two hundred twenty-two million, one hundred ninety-four thousand, five".