2321000212121 has 8 divisors (see below), whose sum is σ = 2335189496640. Its totient is φ = 2306814393168.

The previous prime is 2321000212109. The next prime is 2321000212129. The reversal of 2321000212121 is 1212120001232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2321000212121 - 2¹⁰ = 2321000211097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321000212121.

It is not an unprimeable number, because it can be changed into a prime (2321000212129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483575 + ... + 2208131.

It is an arithmetic number, because the mean of its divisors is an integer number (291898687080).

Almost surely, 2^{2321000212121} is an apocalyptic number.

It is an amenable number.

2321000212121 is a deficient number, since it is larger than the sum of its proper divisors (14189284519).

2321000212121 is a wasteful number, since it uses less digits than its factorization.

2321000212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732783.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2321000212121 its reverse (1212120001232), we get a palindrome (3533120213353).

The spelling of 2321000212121 in words is "two trillion, three hundred twenty-one billion, two hundred twelve thousand, one hundred twenty-one".