10212121000012 has 12 divisors (see below), whose sum is σ = 17880019655680. Its totient is φ = 5103543955536.

The previous prime is 10212121000007. The next prime is 10212121000013. The reversal of 10212121000012 is 21000012121201.

It is a junction number, because it is equal to n+sod(n) for n = 10212120999956 and 10212121000001.

It is not an unprimeable number, because it can be changed into a prime (10212121000013) by changing a digit.

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, 629126988 + ... + 629143219.

Almost surely, 2^{10212121000012} is an apocalyptic number.

It is an amenable number.

10212121000012 is a deficient number, since it is larger than the sum of its proper divisors (7667898655668).

10212121000012 is a wasteful number, since it uses less digits than its factorization.

10212121000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258272240 (or 1258272238 counting only the distinct ones).

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

Adding to 10212121000012 its reverse (21000012121201), we get a palindrome (31212133121213).

The spelling of 10212121000012 in words is "ten trillion, two hundred twelve billion, one hundred twenty-one million, twelve", and thus it is an aban number.