1212002000012 has 24 divisors (see below), whose sum is σ = 2280138147840. Its totient is φ = 561891183120.

The previous prime is 1212002000003. The next prime is 1212002000023. The reversal of 1212002000012 is 2100002002121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212001999957 and 1212002000002.

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, 169649564 + ... + 169656707.

It is an arithmetic number, because the mean of its divisors is an integer number (95005756160).

Almost surely, 2^{1212002000012} is an apocalyptic number.

It is an amenable number.

1212002000012 is a deficient number, since it is larger than the sum of its proper divisors (1068136147828).

1212002000012 is a wasteful number, since it uses less digits than its factorization.

1212002000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339306341 (or 339306339 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1212002000012 its reverse (2100002002121), we get a palindrome (3312004002133).

It can be divided in two parts, 121200 and 2000012, that added together give a palindrome (2121212).

The spelling of 1212002000012 in words is "one trillion, two hundred twelve billion, two million, twelve", and thus it is an aban number.