1311413422221 has 96 divisors (see below), whose sum is σ = 2340923270400. Its totient is φ = 704717604864.

The previous prime is 1311413422183. The next prime is 1311413422237. The reversal of 1311413422221 is 1222243141131.

1311413422221 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 4 + 13 + 422 + 221 = 666.

It is not a de Polignac number, because 1311413422221 - 2¹⁴ = 1311413405837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311413422271) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 68055630 + ... + 68074896.

It is an arithmetic number, because the mean of its divisors is an integer number (24384617400).

Almost surely, 2^{1311413422221} is an apocalyptic number.

It is an amenable number.

1311413422221 is a deficient number, since it is larger than the sum of its proper divisors (1029509848179).

1311413422221 is a wasteful number, since it uses less digits than its factorization.

1311413422221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20608 (or 20591 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

Adding to 1311413422221 its reverse (1222243141131), we get a palindrome (2533656563352).

The spelling of 1311413422221 in words is "one trillion, three hundred eleven billion, four hundred thirteen million, four hundred twenty-two thousand, two hundred twenty-one".