1200000012011 has 16 divisors (see below), whose sum is σ = 1306843200000. Its totient is φ = 1097533041696.

The previous prime is 1200000011921. The next prime is 1200000012023. The reversal of 1200000012011 is 1102100000021.

It is a cyclic number.

It is not a de Polignac number, because 1200000012011 - 2¹⁰ = 1200000010987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200000012011.

It is not an unprimeable number, because it can be changed into a prime (1200000017011) 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, 5815790 + ... + 6018588.

It is an arithmetic number, because the mean of its divisors is an integer number (81677700000).

Almost surely, 2^{1200000012011} is an apocalyptic number.

1200000012011 is a deficient number, since it is larger than the sum of its proper divisors (106843187989).

1200000012011 is a wasteful number, since it uses less digits than its factorization.

1200000012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213586.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1200000012011 its reverse (1102100000021), we get a palindrome (2302100012032).

The spelling of 1200000012011 in words is "one trillion, two hundred billion, twelve thousand, eleven".