1212354412 has 12 divisors (see below), whose sum is σ = 2121879816. Its totient is φ = 606103040.

The previous prime is 1212354401. The next prime is 1212354419. The reversal of 1212354412 is 2144532121.

It is not an unprimeable number, because it can be changed into a prime (1212354419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36183 + ... + 61105.

It is an arithmetic number, because the mean of its divisors is an integer number (176823318).

Almost surely, 2^1212354412 is an apocalyptic number.

It is an amenable number.

1212354412 is a deficient number, since it is larger than the sum of its proper divisors (909525404).

1212354412 is a wasteful number, since it uses less digits than its factorization.

1212354412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37088 (or 37086 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1212354412 is about 34818.8801083550. The cubic root of 1212354412 is about 1066.2929368227.

Adding to 1212354412 its reverse (2144532121), we get a palindrome (3356886533).

The spelling of 1212354412 in words is "one billion, two hundred twelve million, three hundred fifty-four thousand, four hundred twelve".