9812122102012 has 6 divisors (see below), whose sum is σ = 17171213678528. Its totient is φ = 4906061051004.

The previous prime is 9812122102001. The next prime is 9812122102019. The reversal of 9812122102012 is 2102012212189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9812122102019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1226515262748 + ... + 1226515262755.

Almost surely, 2^{9812122102012} is an apocalyptic number.

It is an amenable number.

9812122102012 is a deficient number, since it is larger than the sum of its proper divisors (7359091576516).

9812122102012 is a wasteful number, since it uses less digits than its factorization.

9812122102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453030525507 (or 2453030525505 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The spelling of 9812122102012 in words is "nine trillion, eight hundred twelve billion, one hundred twenty-two million, one hundred two thousand, twelve".