1212816932 has 24 divisors (see below), whose sum is σ = 2182386360. Its totient is φ = 589317120.

The previous prime is 1212816901. The next prime is 1212816947. The reversal of 1212816932 is 2396182121.

It can be written as a sum of positive squares in 4 ways, for example, as 154355776 + 1058461156 = 12424^2 + 32534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1212816892 and 1212816901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133082 + ... + 141902.

It is an arithmetic number, because the mean of its divisors is an integer number (90932765).

Almost surely, 2^1212816932 is an apocalyptic number.

It is an amenable number.

1212816932 is a deficient number, since it is larger than the sum of its proper divisors (969569428).

1212816932 is a wasteful number, since it uses less digits than its factorization.

1212816932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9791 (or 9789 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 1212816932 is about 34825.5212739163. The cubic root of 1212816932 is about 1066.4285184920.

The spelling of 1212816932 in words is "one billion, two hundred twelve million, eight hundred sixteen thousand, nine hundred thirty-two".