2121302232120 has 64 divisors (see below), whose sum is σ = 6535904188320. Its totient is φ = 550391929344.

The previous prime is 2121302232109. The next prime is 2121302232121. The reversal of 2121302232120 is 212322031212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121302232121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238880947 + ... + 238889826.

Almost surely, 2^{2121302232120} is an apocalyptic number.

2121302232120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121302232120 is an abundant number, since it is smaller than the sum of its proper divisors (4414601956200).

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

2121302232120 is a wasteful number, since it uses less digits than its factorization.

2121302232120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477770824 (or 477770820 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2121302232120 its reverse (212322031212), we get a palindrome (2333624263332).

The spelling of 2121302232120 in words is "two trillion, one hundred twenty-one billion, three hundred two million, two hundred thirty-two thousand, one hundred twenty".