1293220012 has 48 divisors (see below), whose sum is σ = 2678683392. Its totient is φ = 534784320.

The previous prime is 1293219989. The next prime is 1293220013. The reversal of 1293220012 is 2100223921.

It is not an unprimeable number, because it can be changed into a prime (1293220013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93462 + ... + 106402.

It is an arithmetic number, because the mean of its divisors is an integer number (55805904).

Almost surely, 2^1293220012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1293220012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1339341696).

1293220012 is an abundant number, since it is smaller than the sum of its proper divisors (1385463380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1293220012 is a wasteful number, since it uses less digits than its factorization.

1293220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13078 (or 13076 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1293220012 is about 35961.3683276930. The cubic root of 1293220012 is about 1089.4922338295.

Adding to 1293220012 its reverse (2100223921), we get a palindrome (3393443933).

The spelling of 1293220012 in words is "one billion, two hundred ninety-three million, two hundred twenty thousand, twelve".