1312223232212 has 48 divisors (see below), whose sum is σ = 2323060992000. Its totient is φ = 648539154144.

The previous prime is 1312223232209. The next prime is 1312223232227. The reversal of 1312223232212 is 2122323222131.

It is a super-2 number, since 2×1312223232212² (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 15 ways as a sum of consecutive naturals, for example, 127904339 + ... + 127914597.

It is an arithmetic number, because the mean of its divisors is an integer number (48397104000).

Almost surely, 2^{1312223232212} is an apocalyptic number.

It is an amenable number.

1312223232212 is a deficient number, since it is larger than the sum of its proper divisors (1010837759788).

1312223232212 is a wasteful number, since it uses less digits than its factorization.

1312223232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11388 (or 11386 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

Adding to 1312223232212 its reverse (2122323222131), we get a palindrome (3434546454343).

The spelling of 1312223232212 in words is "one trillion, three hundred twelve billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred twelve".