120021002101109 has 2 divisors, whose sum is σ = 120021002101110. Its totient is φ = 120021002101108.

The previous prime is 120021002101061. The next prime is 120021002101111. The reversal of 120021002101109 is 901101200120021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119260530898609 + 760471202500 = 10920647^2 + 872050^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021002101109 - 2¹² = 120021002097013 is a prime.

Together with 120021002101111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120021002101709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010501050554 + 60010501050555.

It is an arithmetic number, because the mean of its divisors is an integer number (60010501050555).

Almost surely, 2^{120021002101109} is an apocalyptic number.

It is an amenable number.

120021002101109 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021002101109 is an equidigital number, since it uses as much as digits as its factorization.

120021002101109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 120021002101109 in words is "one hundred twenty trillion, twenty-one billion, two million, one hundred one thousand, one hundred nine".