1222502378 has 8 divisors (see below), whose sum is σ = 1834895268. Its totient is φ = 610870624.

The previous prime is 1222502339. The next prime is 1222502401. The reversal of 1222502378 is 8732052221.

It can be written as a sum of positive squares in 2 ways, for example, as 1216823689 + 5678689 = 34883^2 + 2383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 186251 + ... + 192702.

Almost surely, 2^1222502378 is an apocalyptic number.

1222502378 is a deficient number, since it is larger than the sum of its proper divisors (612392890).

1222502378 is a wasteful number, since it uses less digits than its factorization.

1222502378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380568.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1222502378 is about 34964.3014802241. The cubic root of 1222502378 is about 1069.2597955099.

Adding to 1222502378 its reverse (8732052221), we get a palindrome (9954554599).

The spelling of 1222502378 in words is "one billion, two hundred twenty-two million, five hundred two thousand, three hundred seventy-eight".