12120211002021 has 16 divisors (see below), whose sum is σ = 16448818859520. Its totient is φ = 7936115814000.

The previous prime is 12120211002019. The next prime is 12120211002023. The reversal of 12120211002021 is 12020011202121.

It is an interprime number because it is at equal distance from previous prime (12120211002019) and next prime (12120211002023).

It is not a de Polignac number, because 12120211002021 - 2¹ = 12120211002019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120211002023) 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 15 ways as a sum of consecutive naturals, for example, 30289105 + ... + 30686646.

It is an arithmetic number, because the mean of its divisors is an integer number (1028051178720).

Almost surely, 2^{12120211002021} is an apocalyptic number.

It is an amenable number.

12120211002021 is a deficient number, since it is larger than the sum of its proper divisors (4328607857499).

12120211002021 is a wasteful number, since it uses less digits than its factorization.

12120211002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60976936.

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

Adding to 12120211002021 its reverse (12020011202121), we get a palindrome (24140222204142).

The spelling of 12120211002021 in words is "twelve trillion, one hundred twenty billion, two hundred eleven million, two thousand, twenty-one".