12120022102021 has 2 divisors, whose sum is σ = 12120022102022. Its totient is φ = 12120022102020.

The previous prime is 12120022101973. The next prime is 12120022102043. The reversal of 12120022102021 is 12020122002121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12119971890625 + 50211396 = 3481375^2 + 7086^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120022102021 - 2²³ = 12120013713413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120022101986 and 12120022102004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120022102061) 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 as a sum of consecutive naturals, namely, 6060011051010 + 6060011051011.

It is an arithmetic number, because the mean of its divisors is an integer number (6060011051011).

Almost surely, 2^{12120022102021} is an apocalyptic number.

It is an amenable number.

12120022102021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120022102021 is an equidigital number, since it uses as much as digits as its factorization.

12120022102021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12120022102021 its reverse (12020122002121), we get a palindrome (24140144104142).

The spelling of 12120022102021 in words is "twelve trillion, one hundred twenty billion, twenty-two million, one hundred two thousand, twenty-one".