1222313231131 has 16 divisors (see below), whose sum is σ = 1245120433920. Its totient is φ = 1199577506400.

The previous prime is 1222313231129. The next prime is 1222313231141. The reversal of 1222313231131 is 1311323132221.

It is a cyclic number.

It is not a de Polignac number, because 1222313231131 - 2¹ = 1222313231129 is a prime.

It is a super-2 number, since 2×1222313231131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222313231096 and 1222313231105.

It is not an unprimeable number, because it can be changed into a prime (1222313231141) 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, 93564106 + ... + 93577168.

It is an arithmetic number, because the mean of its divisors is an integer number (77820027120).

Almost surely, 2^{1222313231131} is an apocalyptic number.

1222313231131 is a deficient number, since it is larger than the sum of its proper divisors (22807202789).

1222313231131 is a wasteful number, since it uses less digits than its factorization.

1222313231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15666.

The product of its digits is 1296, while the sum is 25.

Adding to 1222313231131 its reverse (1311323132221), we get a palindrome (2533636363352).

The spelling of 1222313231131 in words is "one trillion, two hundred twenty-two billion, three hundred thirteen million, two hundred thirty-one thousand, one hundred thirty-one".