12010021001212 has 24 divisors (see below), whose sum is σ = 22636160703072. Its totient is φ = 5542623672000.

The previous prime is 12010021001159. The next prime is 12010021001219. The reversal of 12010021001212 is 21210012001021.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 12010021001192 and 12010021001201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010021001219) 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 in 7 ways as a sum of consecutive naturals, for example, 9015664 + ... + 10261687.

It is an arithmetic number, because the mean of its divisors is an integer number (943173362628).

Almost surely, 2^{12010021001212} is an apocalyptic number.

It is an amenable number.

12010021001212 is a deficient number, since it is larger than the sum of its proper divisors (10626139701860).

12010021001212 is a wasteful number, since it uses less digits than its factorization.

12010021001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19289349 (or 19289347 counting only the distinct ones).

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

Adding to 12010021001212 its reverse (21210012001021), we get a palindrome (33220033002233).

The spelling of 12010021001212 in words is "twelve trillion, ten billion, twenty-one million, one thousand, two hundred twelve".