1200120412 has 12 divisors (see below), whose sum is σ = 2103211656. Its totient is φ = 599202800.

The previous prime is 1200120407. The next prime is 1200120433. The reversal of 1200120412 is 2140210021.

It is a happy number.

It is a super-3 number, since 3×1200120412³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200120392 and 1200120401.

It is a congruent number.

It is an unprimeable number.

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, 211198 + ... + 216805.

It is an arithmetic number, because the mean of its divisors is an integer number (175267638).

Almost surely, 2^1200120412 is an apocalyptic number.

It is an amenable number.

1200120412 is a deficient number, since it is larger than the sum of its proper divisors (903091244).

1200120412 is a wasteful number, since it uses less digits than its factorization.

1200120412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428708 (or 428706 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1200120412 is about 34642.7541052960. The cubic root of 1200120412 is about 1062.6941115615.

Adding to 1200120412 its reverse (2140210021), we get a palindrome (3340330433).

The spelling of 1200120412 in words is "one billion, two hundred million, one hundred twenty thousand, four hundred twelve".