2121301303120 has 80 divisors (see below), whose sum is σ = 5146839688320. Its totient is φ = 811568671232.

The previous prime is 2121301303111. The next prime is 2121301303157. The reversal of 2121301303120 is 213031031212.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-4 number, since 4×2121301303120⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31295826 + ... + 31363534.

It is an arithmetic number, because the mean of its divisors is an integer number (64335496104).

Almost surely, 2^{2121301303120} is an apocalyptic number.

2121301303120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121301303120 is an abundant number, since it is smaller than the sum of its proper divisors (3025538385200).

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

2121301303120 is a wasteful number, since it uses less digits than its factorization.

2121301303120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84772 (or 84766 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2121301303120 its reverse (213031031212), we get a palindrome (2334332334332).

The spelling of 2121301303120 in words is "two trillion, one hundred twenty-one billion, three hundred one million, three hundred three thousand, one hundred twenty".