1229311322 has 4 divisors (see below), whose sum is σ = 1843966986. Its totient is φ = 614655660.

The previous prime is 1229311297. The next prime is 1229311333. The reversal of 1229311322 is 2231139221.

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

It can be written as a sum of positive squares in only one way, i.e., 723556201 + 505755121 = 26899^2 + 22489^2 .

It is a super-2 number, since 2×1229311322² = 3022412652794775368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1229311291 and 1229311300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307327829 + ... + 307327832.

Almost surely, 2^1229311322 is an apocalyptic number.

1229311322 is a deficient number, since it is larger than the sum of its proper divisors (614655664).

1229311322 is an equidigital number, since it uses as much as digits as its factorization.

1229311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614655663.

The product of its digits is 1296, while the sum is 26.

The square root of 1229311322 is about 35061.5362184831. The cubic root of 1229311322 is about 1071.2412654126.

The spelling of 1229311322 in words is "one billion, two hundred twenty-nine million, three hundred eleven thousand, three hundred twenty-two".