122478121147 has 8 divisors (see below), whose sum is σ = 123112440000. Its totient is φ = 121843929984.

The previous prime is 122478121133. The next prime is 122478121201. The reversal of 122478121147 is 741121874221.

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 122478121147 - 2¹⁵ = 122478088379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122478122147) 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 7 ways as a sum of consecutive naturals, for example, 2347854 + ... + 2399452.

It is an arithmetic number, because the mean of its divisors is an integer number (15389055000).

Almost surely, 2^122478121147 is an apocalyptic number.

122478121147 is a deficient number, since it is larger than the sum of its proper divisors (634318853).

122478121147 is a wasteful number, since it uses less digits than its factorization.

122478121147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63845.

The product of its digits is 50176, while the sum is 40.

Adding to 122478121147 its reverse (741121874221), we get a palindrome (863599995368).

The spelling of 122478121147 in words is "one hundred twenty-two billion, four hundred seventy-eight million, one hundred twenty-one thousand, one hundred forty-seven".