1212112232012 has 12 divisors (see below), whose sum is σ = 2314032443016. Its totient is φ = 550960105440.

The previous prime is 1212112231963. The next prime is 1212112232017. The reversal of 1212112232012 is 2102322112121.

It is a super-2 number, since 2×1212112232012² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212112232017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13774002593 + ... + 13774002680.

It is an arithmetic number, because the mean of its divisors is an integer number (192836036918).

Almost surely, 2^{1212112232012} is an apocalyptic number.

It is an amenable number.

1212112232012 is a deficient number, since it is larger than the sum of its proper divisors (1101920211004).

1212112232012 is a wasteful number, since it uses less digits than its factorization.

1212112232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27548005288 (or 27548005286 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1212112232012 its reverse (2102322112121), we get a palindrome (3314434344133).

The spelling of 1212112232012 in words is "one trillion, two hundred twelve billion, one hundred twelve million, two hundred thirty-two thousand, twelve".