122745042552 has 32 divisors (see below), whose sum is σ = 334759207680. Its totient is φ = 37195467360.

The previous prime is 122745042533. The next prime is 122745042559. The reversal of 122745042552 is 255240547221.

It is a self number, because there is not a number n which added to its sum of digits gives 122745042552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122745042559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232471408 + ... + 232471935.

It is an arithmetic number, because the mean of its divisors is an integer number (10461225240).

Almost surely, 2^122745042552 is an apocalyptic number.

122745042552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122745042552 is an abundant number, since it is smaller than the sum of its proper divisors (212014165128).

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

122745042552 is a wasteful number, since it uses less digits than its factorization.

122745042552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464943363 (or 464943359 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 39.

Adding to 122745042552 its reverse (255240547221), we get a palindrome (377985589773).

The spelling of 122745042552 in words is "one hundred twenty-two billion, seven hundred forty-five million, forty-two thousand, five hundred fifty-two".