311221322201122 has 16 divisors (see below), whose sum is σ = 494333536114872. Its totient is φ = 146444989715200.

The previous prime is 311221322201107. The next prime is 311221322201147. The reversal of 311221322201122 is 221102223122113.

It can be written as a sum of positive squares in 4 ways, for example, as 301490472437361 + 9730849763761 = 17363481^2 + 3119431^2 .

It is a super-2 number, since 2×311221322201122² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 377803933 + ... + 378626800.

Almost surely, 2^{311221322201122} is an apocalyptic number.

311221322201122 is a deficient number, since it is larger than the sum of its proper divisors (183112213913750).

311221322201122 is a wasteful number, since it uses less digits than its factorization.

311221322201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756442853.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 311221322201122 its reverse (221102223122113), we get a palindrome (532323545323235).

The spelling of 311221322201122 in words is "three hundred eleven trillion, two hundred twenty-one billion, three hundred twenty-two million, two hundred one thousand, one hundred twenty-two".