122541223545 has 64 divisors (see below), whose sum is σ = 242176972800. Its totient is φ = 58381896960.

The previous prime is 122541223517. The next prime is 122541223547. The reversal of 122541223545 is 545322145221.

122541223545 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 412 + 235 + 4 + 5 = 666.

It is not a de Polignac number, because 122541223545 - 2⁵ = 122541223513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122541223547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1071790 + ... + 1180599.

It is an arithmetic number, because the mean of its divisors is an integer number (3784015200).

Almost surely, 2^122541223545 is an apocalyptic number.

122541223545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

122541223545 is a deficient number, since it is larger than the sum of its proper divisors (119635749255).

122541223545 is a wasteful number, since it uses less digits than its factorization.

122541223545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252447 (or 2252441 counting only the distinct ones).

The product of its digits is 96000, while the sum is 36.

Adding to 122541223545 its reverse (545322145221), we get a palindrome (667863368766).

The spelling of 122541223545 in words is "one hundred twenty-two billion, five hundred forty-one million, two hundred twenty-three thousand, five hundred forty-five".