1212322316 has 24 divisors (see below), whose sum is σ = 2194844736. Its totient is φ = 585463680.

The previous prime is 1212322313. The next prime is 1212322327. The reversal of 1212322316 is 6132232121.

It is a junction number, because it is equal to n+sod(n) for n = 1212322291 and 1212322300.

It is not an unprimeable number, because it can be changed into a prime (1212322313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9620 + ... + 50171.

It is an arithmetic number, because the mean of its divisors is an integer number (91451864).

Almost surely, 2^1212322316 is an apocalyptic number.

It is an amenable number.

1212322316 is a deficient number, since it is larger than the sum of its proper divisors (982522420).

1212322316 is a wasteful number, since it uses less digits than its factorization.

1212322316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59969 (or 59967 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 1212322316 is about 34818.4192059318. The cubic root of 1212322316 is about 1066.2835270220.

Adding to 1212322316 its reverse (6132232121), we get a palindrome (7344554437).

The spelling of 1212322316 in words is "one billion, two hundred twelve million, three hundred twenty-two thousand, three hundred sixteen".