123100221201100 has 72 divisors (see below), whose sum is σ = 313828088435568. Its totient is φ = 41320353964800.

The previous prime is 123100221201079. The next prime is 123100221201127. The reversal of 123100221201100 is 1102122001321.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4304189239 + ... + 4304217838.

It is an arithmetic number, because the mean of its divisors is an integer number (4358723450494).

Almost surely, 2^{123100221201100} is an apocalyptic number.

123100221201100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123100221201100 is an abundant number, since it is smaller than the sum of its proper divisors (190727867234468).

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

123100221201100 is a wasteful number, since it uses less digits than its factorization.

123100221201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8608407115 (or 8608407108 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 123100221201100 its reverse (1102122001321), we get a palindrome (124202343202421).

The spelling of 123100221201100 in words is "one hundred twenty-three trillion, one hundred billion, two hundred twenty-one million, two hundred one thousand, one hundred".