122105354345 has 8 divisors (see below), whose sum is σ = 157797688776. Its totient is φ = 90170107776.

The previous prime is 122105354321. The next prime is 122105354347. The reversal of 122105354345 is 543453501221.

It can be written as a sum of positive squares in 4 ways, for example, as 787588096 + 121317766249 = 28064^2 + 348307^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122105354345 - 2²⁴ = 122088577129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122105354347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939271892 + ... + 939272021.

It is an arithmetic number, because the mean of its divisors is an integer number (19724711097).

Almost surely, 2^122105354345 is an apocalyptic number.

It is an amenable number.

122105354345 is a deficient number, since it is larger than the sum of its proper divisors (35692334431).

122105354345 is a wasteful number, since it uses less digits than its factorization.

122105354345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878543931.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 122105354345 its reverse (543453501221), we get a palindrome (665558855566).

The spelling of 122105354345 in words is "one hundred twenty-two billion, one hundred five million, three hundred fifty-four thousand, three hundred forty-five".