12101212002021 has 16 divisors (see below), whose sum is σ = 16139989321344. Its totient is φ = 8064954945344.

The previous prime is 12101212001993. The next prime is 12101212002053. The reversal of 12101212002021 is 12020021210121.

It is a cyclic number.

It is not a de Polignac number, because 12101212002021 - 2¹⁴ = 12101211985637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101212002421) 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 15 ways as a sum of consecutive naturals, for example, 363525040 + ... + 363558326.

It is an arithmetic number, because the mean of its divisors is an integer number (1008749332584).

Almost surely, 2^{12101212002021} is an apocalyptic number.

It is an amenable number.

12101212002021 is a deficient number, since it is larger than the sum of its proper divisors (4038777319323).

12101212002021 is a wasteful number, since it uses less digits than its factorization.

12101212002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67500.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12101212002021 its reverse (12020021210121), we get a palindrome (24121233212142).

The spelling of 12101212002021 in words is "twelve trillion, one hundred one billion, two hundred twelve million, two thousand, twenty-one".