12101011022021 has 2 divisors, whose sum is σ = 12101011022022. Its totient is φ = 12101011022020.

The previous prime is 12101011021963. The next prime is 12101011022057. The reversal of 12101011022021 is 12022011010121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8535658912225 + 3565352109796 = 2921585^2 + 1888214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101011022021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12101011021987 and 12101011022005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101011022071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050505511010 + 6050505511011.

It is an arithmetic number, because the mean of its divisors is an integer number (6050505511011).

Almost surely, 2^{12101011022021} is an apocalyptic number.

It is an amenable number.

12101011022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101011022021 is an equidigital number, since it uses as much as digits as its factorization.

12101011022021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12101011022021 its reverse (12022011010121), we get a palindrome (24123022032142).

The spelling of 12101011022021 in words is "twelve trillion, one hundred one billion, eleven million, twenty-two thousand, twenty-one".