1311101166222 has 48 divisors (see below), whose sum is σ = 2994609346560. Its totient is φ = 413425677456.

The previous prime is 1311101166197. The next prime is 1311101166223. The reversal of 1311101166222 is 2226611011131.

1311101166222 is a `hidden beast` number, since 1 + 3 + 11 + 10 + 1 + 16 + 622 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311101166223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2572878 + ... + 3040049.

It is an arithmetic number, because the mean of its divisors is an integer number (62387694720).

Almost surely, 2^{1311101166222} is an apocalyptic number.

1311101166222 is an abundant number, since it is smaller than the sum of its proper divisors (1683508180338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311101166222 is a wasteful number, since it uses less digits than its factorization.

1311101166222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5613637 (or 5613634 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

Adding to 1311101166222 its reverse (2226611011131), we get a palindrome (3537712177353).

The spelling of 1311101166222 in words is "one trillion, three hundred eleven billion, one hundred one million, one hundred sixty-six thousand, two hundred twenty-two".