1201200112011 has 16 divisors (see below), whose sum is σ = 1621956584960. Its totient is φ = 790622894880.

The previous prime is 1201200112009. The next prime is 1201200112019. The reversal of 1201200112011 is 1102110021021.

It is not a de Polignac number, because 1201200112011 - 2¹ = 1201200112009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201200112019) 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, 4925001 + ... + 5163141.

It is an arithmetic number, because the mean of its divisors is an integer number (101372286560).

Almost surely, 2^{1201200112011} is an apocalyptic number.

1201200112011 is a deficient number, since it is larger than the sum of its proper divisors (420756472949).

1201200112011 is a wasteful number, since it uses less digits than its factorization.

1201200112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259506.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1201200112011 its reverse (1102110021021), we get a palindrome (2303310133032).

The spelling of 1201200112011 in words is "one trillion, two hundred one billion, two hundred million, one hundred twelve thousand, eleven".