122000211020509 has 2 divisors, whose sum is σ = 122000211020510. Its totient is φ = 122000211020508.

The previous prime is 122000211020507. The next prime is 122000211020531. The reversal of 122000211020509 is 905020112000221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117012291797284 + 4987919223225 = 10817222^2 + 2233365^2 .

It is a cyclic number.

It is not a de Polignac number, because 122000211020509 - 2¹ = 122000211020507 is a prime.

Together with 122000211020507, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122000211020507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000105510254 + 61000105510255.

It is an arithmetic number, because the mean of its divisors is an integer number (61000105510255).

Almost surely, 2^{122000211020509} is an apocalyptic number.

It is an amenable number.

122000211020509 is a deficient number, since it is larger than the sum of its proper divisors (1).

122000211020509 is an equidigital number, since it uses as much as digits as its factorization.

122000211020509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The spelling of 122000211020509 in words is "one hundred twenty-two trillion, two hundred eleven million, twenty thousand, five hundred nine".