124722127138 has 64 divisors (see below), whose sum is σ = 229975635456. Its totient is φ = 49512960000.

The previous prime is 124722127133. The next prime is 124722127147. The reversal of 124722127138 is 831721227421.

124722127138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 124722127138.

It is not an unprimeable number, because it can be changed into a prime (124722127133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10149558 + ... + 10161838.

It is an arithmetic number, because the mean of its divisors is an integer number (3593369304).

Almost surely, 2^124722127138 is an apocalyptic number.

124722127138 is a deficient number, since it is larger than the sum of its proper divisors (105253508318).

124722127138 is a wasteful number, since it uses less digits than its factorization.

124722127138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12979.

The product of its digits is 75264, while the sum is 40.

The spelling of 124722127138 in words is "one hundred twenty-four billion, seven hundred twenty-two million, one hundred twenty-seven thousand, one hundred thirty-eight".