1312243523222 has 8 divisors (see below), whose sum is σ = 1968474226896. Its totient is φ = 656085447592.

The previous prime is 1312243523219. The next prime is 1312243523237. The reversal of 1312243523222 is 2223253422131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1312243523222² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18111818 + ... + 18184125.

It is an arithmetic number, because the mean of its divisors is an integer number (246059278362).

Almost surely, 2^{1312243523222} is an apocalyptic number.

1312243523222 is a deficient number, since it is larger than the sum of its proper divisors (656230703674).

1312243523222 is a wasteful number, since it uses less digits than its factorization.

1312243523222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36314022.

The product of its digits is 34560, while the sum is 32.

Adding to 1312243523222 its reverse (2223253422131), we get a palindrome (3535496945353).

The spelling of 1312243523222 in words is "one trillion, three hundred twelve billion, two hundred forty-three million, five hundred twenty-three thousand, two hundred twenty-two".