211221330103321 has 16 divisors (see below), whose sum is σ = 215332749865728. Its totient is φ = 207114616987200.

The previous prime is 211221330103249. The next prime is 211221330103391. The reversal of 211221330103321 is 123301033122112.

It is a cyclic number.

It is not a de Polignac number, because 211221330103321 - 2⁴¹ = 209022306847769 is a prime.

It is a super-2 number, since 2×211221330103321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211221330103391) 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 15 ways as a sum of consecutive naturals, for example, 625151451 + ... + 625489231.

It is an arithmetic number, because the mean of its divisors is an integer number (13458296866608).

Almost surely, 2^{211221330103321} is an apocalyptic number.

It is an amenable number.

211221330103321 is a deficient number, since it is larger than the sum of its proper divisors (4111419762407).

211221330103321 is a wasteful number, since it uses less digits than its factorization.

211221330103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344712.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 211221330103321 its reverse (123301033122112), we get a palindrome (334522363225433).

The spelling of 211221330103321 in words is "two hundred eleven trillion, two hundred twenty-one billion, three hundred thirty million, one hundred three thousand, three hundred twenty-one".