1205211412 has 12 divisors (see below), whose sum is σ = 2153995200. Its totient is φ = 589784216.

The previous prime is 1205211391. The next prime is 1205211419. The reversal of 1205211412 is 2141125021.

It is a self number, because there is not a number n which added to its sum of digits gives 1205211412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205211419) 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, 3205162 + ... + 3205537.

It is an arithmetic number, because the mean of its divisors is an integer number (179499600).

Almost surely, 2^1205211412 is an apocalyptic number.

It is an amenable number.

1205211412 is a deficient number, since it is larger than the sum of its proper divisors (948783788).

1205211412 is a wasteful number, since it uses less digits than its factorization.

1205211412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410750 (or 6410748 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 1205211412 is about 34716.1549138150. The cubic root of 1205211412 is about 1064.1946675401.

Adding to 1205211412 its reverse (2141125021), we get a palindrome (3346336433).

The spelling of 1205211412 in words is "one billion, two hundred five million, two hundred eleven thousand, four hundred twelve".