123122000220 has 48 divisors (see below), whose sum is σ = 344764039200. Its totient is φ = 32830396416.

The previous prime is 123122000213. The next prime is 123122000227. The reversal of 123122000220 is 22000221321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123122000213) and next prime (123122000227).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 123122000220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123122000227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1004856 + ... + 1120704.

It is an arithmetic number, because the mean of its divisors is an integer number (7182584150).

Almost surely, 2^123122000220 is an apocalyptic number.

123122000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123122000220 is an abundant number, since it is smaller than the sum of its proper divisors (221642038980).

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

123122000220 is a wasteful number, since it uses less digits than its factorization.

123122000220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133574 (or 133572 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 123122000220 its reverse (22000221321), we get a palindrome (145122221541).

The spelling of 123122000220 in words is "one hundred twenty-three billion, one hundred twenty-two million, two hundred twenty", and thus it is an aban number.