2122021210321 has 8 divisors (see below), whose sum is σ = 2267045442080. Its totient is φ = 1980330869088.

The previous prime is 2122021210303. The next prime is 2122021210327. The reversal of 2122021210321 is 1230121202212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2122021210321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2122021210327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 833471316 + ... + 833473861.

It is an arithmetic number, because the mean of its divisors is an integer number (283380680260).

Almost surely, 2^{2122021210321} is an apocalyptic number.

It is an amenable number.

2122021210321 is a deficient number, since it is larger than the sum of its proper divisors (145024231759).

2122021210321 is a wasteful number, since it uses less digits than its factorization.

2122021210321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666945263.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2122021210321 its reverse (1230121202212), we get a palindrome (3352142412533).

The spelling of 2122021210321 in words is "two trillion, one hundred twenty-two billion, twenty-one million, two hundred ten thousand, three hundred twenty-one".