122000203109 has 2 divisors, whose sum is σ = 122000203110. Its totient is φ = 122000203108.

The previous prime is 122000203093. The next prime is 122000203121. The reversal of 122000203109 is 901302000221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104747380609 + 17252822500 = 323647^2 + 131350^2 .

It is a cyclic number.

It is not a de Polignac number, because 122000203109 - 2⁴ = 122000203093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122000293109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61000101554 + 61000101555.

It is an arithmetic number, because the mean of its divisors is an integer number (61000101555).

Almost surely, 2^122000203109 is an apocalyptic number.

It is an amenable number.

122000203109 is a deficient number, since it is larger than the sum of its proper divisors (1).

122000203109 is an equidigital number, since it uses as much as digits as its factorization.

122000203109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 122000203109 in words is "one hundred twenty-two billion, two hundred three thousand, one hundred nine".