1212112001212 has 24 divisors (see below), whose sum is σ = 2436916285440. Its totient is φ = 516756797040.

The previous prime is 1212112001203. The next prime is 1212112001237. The reversal of 1212112001212 is 2121002112121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113318512 + ... + 113329207.

It is an arithmetic number, because the mean of its divisors is an integer number (101538178560).

Almost surely, 2^{1212112001212} is an apocalyptic number.

It is an amenable number.

1212112001212 is an abundant number, since it is smaller than the sum of its proper divisors (1224804284228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212112001212 is a wasteful number, since it uses less digits than its factorization.

1212112001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226647921 (or 226647919 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1212112001212 its reverse (2121002112121), we get a palindrome (3333114113333).

The spelling of 1212112001212 in words is "one trillion, two hundred twelve billion, one hundred twelve million, one thousand, two hundred twelve".