2121333000000 has 196 divisors, whose sum is σ = 7015787071776. Its totient is φ = 565688000000.

The previous prime is 2121332999993. The next prime is 2121333000037. The reversal of 2121333000000 is 3331212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 2646445 + ... + 3353555.

Almost surely, 2^{2121333000000} is an apocalyptic number.

2121333000000 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 2121333000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3507893535888).

2121333000000 is an abundant number, since it is smaller than the sum of its proper divisors (4894454071776).

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

2121333000000 is an frugal number, since it uses more digits than its factorization.

2121333000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707156 (or 707121 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 2121333000000 its reverse (3331212), we get a palindrome (2121336331212).

The spelling of 2121333000000 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-three million", and thus it is an aban number.