1201122001311 has 16 divisors (see below), whose sum is σ = 1602908160000. Its totient is φ = 800042156928.

The previous prime is 1201122001229. The next prime is 1201122001319. The reversal of 1201122001311 is 1131002211021.

It is a de Polignac number, because none of the positive numbers 2^k-1201122001311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201122001319) 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, 22994055 + ... + 23046231.

It is an arithmetic number, because the mean of its divisors is an integer number (100181760000).

Almost surely, 2^{1201122001311} is an apocalyptic number.

1201122001311 is a deficient number, since it is larger than the sum of its proper divisors (401786158689).

1201122001311 is a wasteful number, since it uses less digits than its factorization.

1201122001311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58798.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1201122001311 its reverse (1131002211021), we get a palindrome (2332124212332).

The spelling of 1201122001311 in words is "one trillion, two hundred one billion, one hundred twenty-two million, one thousand, three hundred eleven".