1200112212011 has 4 divisors (see below), whose sum is σ = 1204781909592. Its totient is φ = 1195442514432.

The previous prime is 1200112211999. The next prime is 1200112212049. The reversal of 1200112212011 is 1102122110021.

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 1200112212011 - 2³⁰ = 1199038470187 is a prime.

It is a super-4 number, since 4×1200112212011⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200112212071) 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, 2334848405 + ... + 2334848918.

It is an arithmetic number, because the mean of its divisors is an integer number (301195477398).

Almost surely, 2^{1200112212011} is an apocalyptic number.

1200112212011 is a deficient number, since it is larger than the sum of its proper divisors (4669697581).

1200112212011 is an equidigital number, since it uses as much as digits as its factorization.

1200112212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4669697580.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1200112212011 its reverse (1102122110021), we get a palindrome (2302234322032).

The spelling of 1200112212011 in words is "one trillion, two hundred billion, one hundred twelve million, two hundred twelve thousand, eleven".