2121033110000 has 200 divisors, whose sum is σ = 5988619903200. Its totient is φ = 727210176000.

The previous prime is 2121033109991. The next prime is 2121033110023. The reversal of 2121033110000 is 113301212.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

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, 3120812 + ... + 3739188.

It is an arithmetic number, because the mean of its divisors is an integer number (29943099516).

Almost surely, 2^{2121033110000} is an apocalyptic number.

2121033110000 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 2121033110000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2994309951600).

2121033110000 is an abundant number, since it is smaller than the sum of its proper divisors (3867586793200).

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

2121033110000 is an frugal number, since it uses more digits than its factorization.

2121033110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618426 (or 618391 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 2121033110000 its reverse (113301212), we get a palindrome (2121146411212).

The spelling of 2121033110000 in words is "two trillion, one hundred twenty-one billion, thirty-three million, one hundred ten thousand".