121210324000 has 192 divisors, whose sum is σ = 301614243840. Its totient is φ = 47869516800.

The previous prime is 121210323979. The next prime is 121210324009. The reversal of 121210324000 is 423012121.

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

It is not an unprimeable number, because it can be changed into a prime (121210324009) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136651557 + ... + 136652443.

It is an arithmetic number, because the mean of its divisors is an integer number (1570907520).

Almost surely, 2^121210324000 is an apocalyptic number.

121210324000 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 121210324000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150807121920).

121210324000 is an abundant number, since it is smaller than the sum of its proper divisors (180403919840).

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

121210324000 is a wasteful number, since it uses less digits than its factorization.

121210324000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1290 counting only the distinct ones).

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

Adding to 121210324000 its reverse (423012121), we get a palindrome (121633336121).

The spelling of 121210324000 in words is "one hundred twenty-one billion, two hundred ten million, three hundred twenty-four thousand".