122020355305 has 4 divisors (see below), whose sum is σ = 146424426372. Its totient is φ = 97616284240.

The previous prime is 122020355267. The next prime is 122020355321. The reversal of 122020355305 is 503553020221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66872408409 + 55147946896 = 258597^2 + 234836^2 .

It is not a de Polignac number, because 122020355305 - 2²⁹ = 121483484393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12202035526 + ... + 12202035535.

It is an arithmetic number, because the mean of its divisors is an integer number (36606106593).

Almost surely, 2^122020355305 is an apocalyptic number.

It is an amenable number.

122020355305 is a deficient number, since it is larger than the sum of its proper divisors (24404071067).

122020355305 is an equidigital number, since it uses as much as digits as its factorization.

122020355305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24404071066.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 122020355305 its reverse (503553020221), we get a palindrome (625573375526).

The spelling of 122020355305 in words is "one hundred twenty-two billion, twenty million, three hundred fifty-five thousand, three hundred five".