1212434322 has 64 divisors (see below), whose sum is σ = 2808691200. Its totient is φ = 344833280.

The previous prime is 1212434281. The next prime is 1212434323. The reversal of 1212434322 is 2234342121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212434292 and 1212434301.

It is not an unprimeable number, because it can be changed into a prime (1212434323) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 468829 + ... + 471407.

It is an arithmetic number, because the mean of its divisors is an integer number (43885800).

Almost surely, 2^1212434322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212434322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1404345600).

1212434322 is an abundant number, since it is smaller than the sum of its proper divisors (1596256878).

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

1212434322 is a wasteful number, since it uses less digits than its factorization.

1212434322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031.

The product of its digits is 2304, while the sum is 24.

The square root of 1212434322 is about 34820.0275990701. The cubic root of 1212434322 is about 1066.3163638546.

Adding to 1212434322 its reverse (2234342121), we get a palindrome (3446776443).

It can be divided in two parts, 1212 and 434322, that added together give a palindrome (435534).

The spelling of 1212434322 in words is "one billion, two hundred twelve million, four hundred thirty-four thousand, three hundred twenty-two".