123201221200 has 60 divisors (see below), whose sum is σ = 311569423360. Its totient is φ = 46686775680.

The previous prime is 123201221173. The next prime is 123201221207. The reversal of 123201221200 is 2122102321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123201221207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8097744 + ... + 8112943.

Almost surely, 2^123201221200 is an apocalyptic number.

123201221200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123201221200 is an abundant number, since it is smaller than the sum of its proper divisors (188368202160).

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

123201221200 is a wasteful number, since it uses less digits than its factorization.

123201221200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16210724 (or 16210713 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 123201221200 its reverse (2122102321), we get a palindrome (125323323521).

The spelling of 123201221200 in words is "one hundred twenty-three billion, two hundred one million, two hundred twenty-one thousand, two hundred".