12020020220077 has 2 divisors, whose sum is σ = 12020020220078. Its totient is φ = 12020020220076.

The previous prime is 12020020220071. The next prime is 12020020220083. The reversal of 12020020220077 is 77002202002021.

It is a balanced prime because it is at equal distance from previous prime (12020020220071) and next prime (12020020220083).

It can be written as a sum of positive squares in only one way, i.e., 6453129170601 + 5566891049476 = 2540301^2 + 2359426^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020020220077 - 2³ = 12020020220069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020020220071) 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, 6010010110038 + 6010010110039.

It is an arithmetic number, because the mean of its divisors is an integer number (6010010110039).

Almost surely, 2^{12020020220077} is an apocalyptic number.

It is an amenable number.

12020020220077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020020220077 is an equidigital number, since it uses as much as digits as its factorization.

12020020220077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 25.

Adding to 12020020220077 its reverse (77002202002021), we get a palindrome (89022222222098).

The spelling of 12020020220077 in words is "twelve trillion, twenty billion, twenty million, two hundred twenty thousand, seventy-seven".