1200211999 has 8 divisors (see below), whose sum is σ = 1372428288. Its totient is φ = 1028185080.

The previous prime is 1200211997. The next prime is 1200212017. The reversal of 1200211999 is 9991120021.

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

It is a cyclic number.

It is not a de Polignac number, because 1200211999 - 2¹ = 1200211997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200211993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33487 + ... + 59344.

It is an arithmetic number, because the mean of its divisors is an integer number (171553536).

Almost surely, 2^1200211999 is an apocalyptic number.

1200211999 is a deficient number, since it is larger than the sum of its proper divisors (172216289).

1200211999 is an equidigital number, since it uses as much as digits as its factorization.

1200211999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94685.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 1200211999 is about 34644.0759582356. The cubic root of 1200211999 is about 1062.7211439850.

The spelling of 1200211999 in words is "one billion, two hundred million, two hundred eleven thousand, nine hundred ninety-nine".