1201121120000 has 180 divisors, whose sum is σ = 3000979141776. Its totient is φ = 479646720000.

The previous prime is 1201121119987. The next prime is 1201121120047. The reversal of 1201121120000 is 211211021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 100954052 + ... + 100965948.

Almost surely, 2^{1201121120000} is an apocalyptic number.

1201121120000 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 1201121120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500489570888).

1201121120000 is an abundant number, since it is smaller than the sum of its proper divisors (1799858021776).

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

1201121120000 is an frugal number, since it uses more digits than its factorization.

1201121120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564 (or 12535 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1201121120000 its reverse (211211021), we get a palindrome (1201332331021).

The spelling of 1201121120000 in words is "one trillion, two hundred one billion, one hundred twenty-one million, one hundred twenty thousand".