120021120102077 has 2 divisors, whose sum is σ = 120021120102078. Its totient is φ = 120021120102076.

The previous prime is 120021120102067. The next prime is 120021120102113. The reversal of 120021120102077 is 770201021120021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72543700873081 + 47477419228996 = 8517259^2 + 6890386^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021120102077 - 2¹⁶ = 120021120036541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021120102017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010560051038 + 60010560051039.

It is an arithmetic number, because the mean of its divisors is an integer number (60010560051039).

Almost surely, 2^{120021120102077} is an apocalyptic number.

It is an amenable number.

120021120102077 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021120102077 is an equidigital number, since it uses as much as digits as its factorization.

120021120102077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 26.

Adding to 120021120102077 its reverse (770201021120021), we get a palindrome (890222141222098).

The spelling of 120021120102077 in words is "one hundred twenty trillion, twenty-one billion, one hundred twenty million, one hundred two thousand, seventy-seven".