122550042747 has 16 divisors (see below), whose sum is σ = 184401319680. Its totient is φ = 71711623200.

The previous prime is 122550042733. The next prime is 122550042761. The reversal of 122550042747 is 747240055221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (122550042733) and next prime (122550042761).

It is not a de Polignac number, because 122550042747 - 2¹¹ = 122550040699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122550042547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64027279 + ... + 64029192.

It is an arithmetic number, because the mean of its divisors is an integer number (11525082480).

Almost surely, 2^122550042747 is an apocalyptic number.

122550042747 is a deficient number, since it is larger than the sum of its proper divisors (61851276933).

122550042747 is a wasteful number, since it uses less digits than its factorization.

122550042747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128056514.

The product of its (nonzero) digits is 156800, while the sum is 39.

Adding to 122550042747 its reverse (747240055221), we get a palindrome (869790097968).

The spelling of 122550042747 in words is "one hundred twenty-two billion, five hundred fifty million, forty-two thousand, seven hundred forty-seven".