122042134550 has 48 divisors (see below), whose sum is σ = 267795336192. Its totient is φ = 40493239200.

The previous prime is 122042134523. The next prime is 122042134559. The reversal of 122042134550 is 55431240221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122042134559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5613212 + ... + 5634911.

It is an arithmetic number, because the mean of its divisors is an integer number (5579069504).

Almost surely, 2^122042134550 is an apocalyptic number.

122042134550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122042134550 is an abundant number, since it is smaller than the sum of its proper divisors (145753201642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122042134550 is a wasteful number, since it uses less digits than its factorization.

122042134550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11248173 (or 11248168 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 122042134550 its reverse (55431240221), we get a palindrome (177473374771).

The spelling of 122042134550 in words is "one hundred twenty-two billion, forty-two million, one hundred thirty-four thousand, five hundred fifty".