1222985326 has 4 divisors (see below), whose sum is σ = 1834477992. Its totient is φ = 611492662.

The previous prime is 1222985311. The next prime is 1222985347. The reversal of 1222985326 is 6235892221.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×1222985326² = 2991386215222652552, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305746330 + ... + 305746333.

It is an arithmetic number, because the mean of its divisors is an integer number (458619498).

Almost surely, 2^1222985326 is an apocalyptic number.

1222985326 is a deficient number, since it is larger than the sum of its proper divisors (611492666).

1222985326 is an equidigital number, since it uses as much as digits as its factorization.

1222985326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611492665.

The product of its digits is 103680, while the sum is 40.

The square root of 1222985326 is about 34971.2070995555. The cubic root of 1222985326 is about 1069.4005802106.

The spelling of 1222985326 in words is "one billion, two hundred twenty-two million, nine hundred eighty-five thousand, three hundred twenty-six".