1200002112011 has 4 divisors (see below), whose sum is σ = 1205689326024. Its totient is φ = 1194314898000.

The previous prime is 1200002111969. The next prime is 1200002112041. The reversal of 1200002112011 is 1102112000021.

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 1200002112011 - 2¹⁸ = 1200001849867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200002111983 and 1200002112001.

It is not an unprimeable number, because it can be changed into a prime (1200002112041) 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, 2843606690 + ... + 2843607111.

It is an arithmetic number, because the mean of its divisors is an integer number (301422331506).

Almost surely, 2^{1200002112011} is an apocalyptic number.

1200002112011 is a deficient number, since it is larger than the sum of its proper divisors (5687214013).

1200002112011 is an equidigital number, since it uses as much as digits as its factorization.

1200002112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5687214012.

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

Adding to 1200002112011 its reverse (1102112000021), we get a palindrome (2302114112032).

The spelling of 1200002112011 in words is "one trillion, two hundred billion, two million, one hundred twelve thousand, eleven".