121012323200 has 96 divisors (see below), whose sum is σ = 301681677000. Its totient is φ = 47960709120.

The previous prime is 121012323191. The next prime is 121012323209. The reversal of 121012323200 is 2323210121.

It is an interprime number because it is at equal distance from previous prime (121012323191) and next prime (121012323209).

It is a super-3 number, since 3×121012323200³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012323209) 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, 175331 + ... + 522269.

Almost surely, 2^121012323200 is an apocalyptic number.

121012323200 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 121012323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150840838500).

121012323200 is an abundant number, since it is smaller than the sum of its proper divisors (180669353800).

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

121012323200 is a wasteful number, since it uses less digits than its factorization.

121012323200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347072 (or 347055 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121012323200 its reverse (2323210121), we get a palindrome (123335533321).

The spelling of 121012323200 in words is "one hundred twenty-one billion, twelve million, three hundred twenty-three thousand, two hundred".