2321221212211 has 8 divisors (see below), whose sum is σ = 2532252858048. Its totient is φ = 2110191489000.

The previous prime is 2321221212179. The next prime is 2321221212241. The reversal of 2321221212211 is 1122121221232.

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 2321221212211 - 2⁵ = 2321221212179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321221212241) 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, 3420276 + ... + 4042366.

It is an arithmetic number, because the mean of its divisors is an integer number (316531607256).

Almost surely, 2^{2321221212211} is an apocalyptic number.

2321221212211 is a deficient number, since it is larger than the sum of its proper divisors (211031645837).

2321221212211 is a wasteful number, since it uses less digits than its factorization.

2321221212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961313.

The product of its digits is 384, while the sum is 22.

Adding to 2321221212211 its reverse (1122121221232), we get a palindrome (3443342433443).

The spelling of 2321221212211 in words is "two trillion, three hundred twenty-one billion, two hundred twenty-one million, two hundred twelve thousand, two hundred eleven".