1201112201011 has 32 divisors (see below), whose sum is σ = 1309577699520. Its totient is φ = 1097412403200.

The previous prime is 1201112200931. The next prime is 1201112201041. The reversal of 1201112201011 is 1101022111021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1201112201011 - 2¹⁷ = 1201112069939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201112200982 and 1201112201000.

It is not an unprimeable number, because it can be changed into a prime (1201112201041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29827851 + ... + 29868091.

It is an arithmetic number, because the mean of its divisors is an integer number (40924303110).

Almost surely, 2^{1201112201011} is an apocalyptic number.

1201112201011 is a deficient number, since it is larger than the sum of its proper divisors (108465498509).

1201112201011 is a wasteful number, since it uses less digits than its factorization.

1201112201011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40695.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1201112201011 its reverse (1101022111021), we get a palindrome (2302134312032).

The spelling of 1201112201011 in words is "one trillion, two hundred one billion, one hundred twelve million, two hundred one thousand, eleven".