1200012066 has 24 divisors (see below), whose sum is σ = 2836392624. Its totient is φ = 363639960.

The previous prime is 1200012053. The next prime is 1200012101. The reversal of 1200012066 is 6602100021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3030136 + ... + 3030531.

It is an arithmetic number, because the mean of its divisors is an integer number (118183026).

Almost surely, 2^1200012066 is an apocalyptic number.

1200012066 is an abundant number, since it is smaller than the sum of its proper divisors (1636380558).

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

1200012066 is a wasteful number, since it uses less digits than its factorization.

1200012066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6060686 (or 6060683 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1200012066 is about 34641.1903086485. The cubic root of 1200012066 is about 1062.6621308480.

Adding to 1200012066 its reverse (6602100021), we get a palindrome (7802112087).

The spelling of 1200012066 in words is "one billion, two hundred million, twelve thousand, sixty-six".