123222001100 has 72 divisors (see below), whose sum is σ = 292240680816. Its totient is φ = 44724960000.

The previous prime is 123222001069. The next prime is 123222001103. The reversal of 123222001100 is 1100222321.

It is a happy number.

123222001100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (123222001103) 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 23 ways as a sum of consecutive naturals, for example, 491570 + ... + 698630.

Almost surely, 2^123222001100 is an apocalyptic number.

123222001100 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 123222001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146120340408).

123222001100 is an abundant number, since it is smaller than the sum of its proper divisors (169018679716).

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

123222001100 is a wasteful number, since it uses less digits than its factorization.

123222001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207627 (or 207620 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 123222001100 its reverse (1100222321), we get a palindrome (124322223421).

The spelling of 123222001100 in words is "one hundred twenty-three billion, two hundred twenty-two million, one thousand, one hundred".