2001120412 has 12 divisors (see below), whose sum is σ = 3583401976. Its totient is φ = 977291280.

The previous prime is 2001120397. The next prime is 2001120421. The reversal of 2001120412 is 2140211002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001120392 and 2001120401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5817039 + ... + 5817382.

Almost surely, 2^2001120412 is an apocalyptic number.

It is an amenable number.

2001120412 is a deficient number, since it is larger than the sum of its proper divisors (1582281564).

2001120412 is a wasteful number, since it uses less digits than its factorization.

2001120412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11634468 (or 11634466 counting only the distinct ones).

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

The square root of 2001120412 is about 44733.8843830938. The cubic root of 2001120412 is about 1260.1562777522.

Adding to 2001120412 its reverse (2140211002), we get a palindrome (4141331414).

The spelling of 2001120412 in words is "two billion, one million, one hundred twenty thousand, four hundred twelve".