1201200199999 has 4 divisors (see below), whose sum is σ = 1206491831064. Its totient is φ = 1195908568936.

The previous prime is 1201200199949. The next prime is 1201200200069. The reversal of 1201200199999 is 9999910021021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201200199999 - 2²⁹ = 1200663329087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201200199909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645815192 + ... + 2645815645.

It is an arithmetic number, because the mean of its divisors is an integer number (301622957766).

Almost surely, 2^{1201200199999} is an apocalyptic number.

1201200199999 is a deficient number, since it is larger than the sum of its proper divisors (5291631065).

1201200199999 is an equidigital number, since it uses as much as digits as its factorization.

1201200199999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5291631064.

The product of its (nonzero) digits is 236196, while the sum is 52.

The spelling of 1201200199999 in words is "one trillion, two hundred one billion, two hundred million, one hundred ninety-nine thousand, nine hundred ninety-nine".