122551241405 has 8 divisors (see below), whose sum is σ = 147077156184. Its totient is φ = 98030548800.

The previous prime is 122551241341. The next prime is 122551241431. The reversal of 122551241405 is 504142155221.

It can be written as a sum of positive squares in 4 ways, for example, as 2809636036 + 119741605369 = 53006^2 + 346037^2 .

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

It is not a de Polignac number, because 122551241405 - 2⁶ = 122551241341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253726 + ... + 1347935.

It is an arithmetic number, because the mean of its divisors is an integer number (18384644523).

Almost surely, 2^122551241405 is an apocalyptic number.

It is an amenable number.

122551241405 is a deficient number, since it is larger than the sum of its proper divisors (24525914779).

122551241405 is an equidigital number, since it uses as much as digits as its factorization.

122551241405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611087.

The product of its (nonzero) digits is 16000, while the sum is 32.

Adding to 122551241405 its reverse (504142155221), we get a palindrome (626693396626).

The spelling of 122551241405 in words is "one hundred twenty-two billion, five hundred fifty-one million, two hundred forty-one thousand, four hundred five".