10212578398012 has 6 divisors (see below), whose sum is σ = 17872012196528. Its totient is φ = 5106289199004.

The previous prime is 10212578397991. The next prime is 10212578398013. The reversal of 10212578398012 is 21089387521201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212578398013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276572299748 + ... + 1276572299755.

Almost surely, 2^{10212578398012} is an apocalyptic number.

It is an amenable number.

10212578398012 is a deficient number, since it is larger than the sum of its proper divisors (7659433798516).

10212578398012 is a wasteful number, since it uses less digits than its factorization.

10212578398012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553144599507 (or 2553144599505 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 49.

The spelling of 10212578398012 in words is "ten trillion, two hundred twelve billion, five hundred seventy-eight million, three hundred ninety-eight thousand, twelve".