121473345105200 has 240 divisors, whose sum is σ = 323620825593312. Its totient is φ = 43443824640000.

The previous prime is 121473345105191. The next prime is 121473345105221. The reversal of 121473345105200 is 2501543374121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4668268190 + ... + 4668294210.

Almost surely, 2^{121473345105200} is an apocalyptic number.

121473345105200 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 121473345105200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161810412796656).

121473345105200 is an abundant number, since it is smaller than the sum of its proper divisors (202147480488112).

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

121473345105200 is a wasteful number, since it uses less digits than its factorization.

121473345105200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43504 (or 43493 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 121473345105200 its reverse (2501543374121), we get a palindrome (123974888479321).

The spelling of 121473345105200 in words is "one hundred twenty-one trillion, four hundred seventy-three billion, three hundred forty-five million, one hundred five thousand, two hundred".