1200202111001 has 16 divisors (see below), whose sum is σ = 1214021020800. Its totient is φ = 1186474608000.

The previous prime is 1200202110929. The next prime is 1200202111033. The reversal of 1200202111001 is 1001112020021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1200202111001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200202111501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25853831 + ... + 25900211.

It is an arithmetic number, because the mean of its divisors is an integer number (75876313800).

Almost surely, 2^{1200202111001} is an apocalyptic number.

It is an amenable number.

1200202111001 is a deficient number, since it is larger than the sum of its proper divisors (13818909799).

1200202111001 is a wasteful number, since it uses less digits than its factorization.

1200202111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47360.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200202111001 its reverse (1001112020021), we get a palindrome (2201314131022).

The spelling of 1200202111001 in words is "one trillion, two hundred billion, two hundred two million, one hundred eleven thousand, one".