122505411101 has 4 divisors (see below), whose sum is σ = 129711611772. Its totient is φ = 115299210432.

The previous prime is 122505411079. The next prime is 122505411131. The reversal of 122505411101 is 101114505221.

It is a happy number.

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 81925323076 + 40580088025 = 286226^2 + 201445^2 .

It is not a de Polignac number, because 122505411101 - 2³⁰ = 121431669277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122505411131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3603100310 + ... + 3603100343.

It is an arithmetic number, because the mean of its divisors is an integer number (32427902943).

Almost surely, 2^122505411101 is an apocalyptic number.

It is an amenable number.

122505411101 is a deficient number, since it is larger than the sum of its proper divisors (7206200671).

122505411101 is an equidigital number, since it uses as much as digits as its factorization.

122505411101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206200670.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 122505411101 its reverse (101114505221), we get a palindrome (223619916322).

The spelling of 122505411101 in words is "one hundred twenty-two billion, five hundred five million, four hundred eleven thousand, one hundred one".