2121133430000 has 100 divisors (see below), whose sum is σ = 5530513113048. Its totient is φ = 783187680000.

The previous prime is 2121133429999. The next prime is 2121133430021. The reversal of 2121133430000 is 343311212.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 8028206 + ... + 8288205.

Almost surely, 2^{2121133430000} is an apocalyptic number.

2121133430000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121133430000 is an abundant number, since it is smaller than the sum of its proper divisors (3409379683048).

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

2121133430000 is a wasteful number, since it uses less digits than its factorization.

2121133430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16316452 (or 16316431 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2121133430000 its reverse (343311212), we get a palindrome (2121476741212).

The spelling of 2121133430000 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-three million, four hundred thirty thousand".