1212122001412 has 12 divisors (see below), whose sum is σ = 2424244002880. Its totient is φ = 519480857736.

The previous prime is 1212122001403. The next prime is 1212122001427. The reversal of 1212122001412 is 2141002212121.

1212122001412 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212122001412.

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, 21645035712 + ... + 21645035767.

Almost surely, 2^{1212122001412} is an apocalyptic number.

It is an amenable number.

1212122001412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1212122001412 is a wasteful number, since it uses less digits than its factorization.

1212122001412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43290071490 (or 43290071488 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1212122001412 its reverse (2141002212121), we get a palindrome (3353124213533).

The spelling of 1212122001412 in words is "one trillion, two hundred twelve billion, one hundred twenty-two million, one thousand, four hundred twelve".