1200201121131 has 4 divisors (see below), whose sum is σ = 1600268161512. Its totient is φ = 800134080752.

The previous prime is 1200201121087. The next prime is 1200201121139. The reversal of 1200201121131 is 1311211020021.

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 1200201121131 - 2⁷ = 1200201121003 is a prime.

It is a super-2 number, since 2×1200201121131² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200201121131.

It is not an unprimeable number, because it can be changed into a prime (1200201121139) 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, 200033520186 + ... + 200033520191.

It is an arithmetic number, because the mean of its divisors is an integer number (400067040378).

Almost surely, 2^{1200201121131} is an apocalyptic number.

1200201121131 is a deficient number, since it is larger than the sum of its proper divisors (400067040381).

1200201121131 is an equidigital number, since it uses as much as digits as its factorization.

1200201121131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400067040380.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1200201121131 its reverse (1311211020021), we get a palindrome (2511412141152).

The spelling of 1200201121131 in words is "one trillion, two hundred billion, two hundred one million, one hundred twenty-one thousand, one hundred thirty-one".