122990488530 has 144 divisors (see below), whose sum is σ = 371814914304. Its totient is φ = 25949589120.

The previous prime is 122990488529. The next prime is 122990488531. The reversal of 122990488530 is 35884099221.

It is an interprime number because it is at equal distance from previous prime (122990488529) and next prime (122990488531).

It is not an unprimeable number, because it can be changed into a prime (122990488531) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 895 + ... + 495965.

It is an arithmetic number, because the mean of its divisors is an integer number (2582048016).

Almost surely, 2^122990488530 is an apocalyptic number.

122990488530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122990488530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185907457152).

122990488530 is an abundant number, since it is smaller than the sum of its proper divisors (248824425774).

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

122990488530 is a wasteful number, since it uses less digits than its factorization.

122990488530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495121 (or 495101 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 122990488530 in words is "one hundred twenty-two billion, nine hundred ninety million, four hundred eighty-eight thousand, five hundred thirty".