1201200999 has 8 divisors (see below), whose sum is σ = 1609732080. Its totient is φ = 796735296.

The previous prime is 1201200947. The next prime is 1201201003. The reversal of 1201200999 is 9990021021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201200999 - 2⁹ = 1201200487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201200929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015654 + ... + 1016835.

It is an arithmetic number, because the mean of its divisors is an integer number (201216510).

Almost surely, 2^1201200999 is an apocalyptic number.

1201200999 is a deficient number, since it is larger than the sum of its proper divisors (408531081).

1201200999 is a wasteful number, since it uses less digits than its factorization.

1201200999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032689.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 1201200999 is about 34658.3467436056. The cubic root of 1201200999 is about 1063.0129653893.

The spelling of 1201200999 in words is "one billion, two hundred one million, two hundred thousand, nine hundred ninety-nine".