201121320000 has 280 divisors, whose sum is σ = 680435515936. Its totient is φ = 52383744000.

The previous prime is 201121319923. The next prime is 201121320019. The reversal of 201121320000 is 23121102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5140512 + ... + 5179488.

Almost surely, 2^201121320000 is an apocalyptic number.

201121320000 is a gapful number since it is divisible by the number (20) 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 201121320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340217757968).

201121320000 is an abundant number, since it is smaller than the sum of its proper divisors (479314195936).

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

201121320000 is an equidigital number, since it uses as much as digits as its factorization.

201121320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39055 (or 39030 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 201121320000 its reverse (23121102), we get a palindrome (201144441102).

The spelling of 201121320000 in words is "two hundred one billion, one hundred twenty-one million, three hundred twenty thousand".