1212021010012 has 12 divisors (see below), whose sum is σ = 2121046404400. Its totient is φ = 606007751616.

The previous prime is 1212021010003. The next prime is 1212021010043. The reversal of 1212021010012 is 2100101202121.

It is a junction number, because it is equal to n+sod(n) for n = 1212021009974 and 1212021010001.

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 3 ways as a sum of consecutive naturals, for example, 549364 + ... + 1651012.

Almost surely, 2^{1212021010012} is an apocalyptic number.

It is an amenable number.

1212021010012 is a deficient number, since it is larger than the sum of its proper divisors (909025394388).

1212021010012 is a wasteful number, since it uses less digits than its factorization.

1212021010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376700 (or 1376698 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212021010012 its reverse (2100101202121), we get a palindrome (3312122212133).

The spelling of 1212021010012 in words is "one trillion, two hundred twelve billion, twenty-one million, ten thousand, twelve".