123220422600 has 288 divisors, whose sum is σ = 441969108000. Its totient is φ = 28299110400.

The previous prime is 123220422569. The next prime is 123220422623. The reversal of 123220422600 is 6224022321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 1334736 + ... + 1424064.

Almost surely, 2^123220422600 is an apocalyptic number.

123220422600 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 123220422600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220984554000).

123220422600 is an abundant number, since it is smaller than the sum of its proper divisors (318748685400).

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

123220422600 is a wasteful number, since it uses less digits than its factorization.

123220422600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89389 (or 89369 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123220422600 its reverse (6224022321), we get a palindrome (129444444921).

The spelling of 123220422600 in words is "one hundred twenty-three billion, two hundred twenty million, four hundred twenty-two thousand, six hundred".