1211200002011 has 8 divisors (see below), whose sum is σ = 1213230942240. Its totient is φ = 1209169242432.

The previous prime is 1211200002007. The next prime is 1211200002037. The reversal of 1211200002011 is 1102000021121.

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 1211200002011 - 2² = 1211200002007 is a prime.

It is a super-3 number, since 3×1211200002011³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211200001983 and 1211200002001.

It is not an unprimeable number, because it can be changed into a prime (1211200002071) 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, 23782871 + ... + 23833743.

It is an arithmetic number, because the mean of its divisors is an integer number (151653867780).

Almost surely, 2^{1211200002011} is an apocalyptic number.

1211200002011 is a deficient number, since it is larger than the sum of its proper divisors (2030940229).

1211200002011 is an equidigital number, since it uses as much as digits as its factorization.

1211200002011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90325.

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

Adding to 1211200002011 its reverse (1102000021121), we get a palindrome (2313200023132).

The spelling of 1211200002011 in words is "one trillion, two hundred eleven billion, two hundred million, two thousand, eleven".