121269320200 has 192 divisors, whose sum is σ = 340614806400. Its totient is φ = 39224217600.

The previous prime is 121269320167. The next prime is 121269320203. The reversal of 121269320200 is 2023962121.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (121269320203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6401142 + ... + 6420058.

It is an arithmetic number, because the mean of its divisors is an integer number (1774035450).

Almost surely, 2^121269320200 is an apocalyptic number.

121269320200 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 121269320200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170307403200).

121269320200 is an abundant number, since it is smaller than the sum of its proper divisors (219345486200).

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

121269320200 is a wasteful number, since it uses less digits than its factorization.

121269320200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19200 (or 19191 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 121269320200 in words is "one hundred twenty-one billion, two hundred sixty-nine million, three hundred twenty thousand, two hundred".