122123230020 has 144 divisors (see below), whose sum is σ = 404482216320. Its totient is φ = 29578867200.

The previous prime is 122123230001. The next prime is 122123230039. The reversal of 122123230020 is 20032321221.

It is an interprime number because it is at equal distance from previous prime (122123230001) and next prime (122123230039).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122123229975 and 122123230002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2208105 + ... + 2262735.

It is an arithmetic number, because the mean of its divisors is an integer number (2808904280).

Almost surely, 2^122123230020 is an apocalyptic number.

122123230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122123230020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202241108160).

122123230020 is an abundant number, since it is smaller than the sum of its proper divisors (282358986300).

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

122123230020 is a wasteful number, since it uses less digits than its factorization.

122123230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55786 (or 55781 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 122123230020 its reverse (20032321221), we get a palindrome (142155551241).

The spelling of 122123230020 in words is "one hundred twenty-two billion, one hundred twenty-three million, two hundred thirty thousand, twenty".