12210101321 has 4 divisors (see below), whose sum is σ = 13320110544. Its totient is φ = 11100092100.

The previous prime is 12210101317. The next prime is 12210101339. The reversal of 12210101321 is 12310101221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12210101321 - 2² = 12210101317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210101296 and 12210101305.

It is not an unprimeable number, because it can be changed into a prime (12210101341) 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 3 ways as a sum of consecutive naturals, for example, 555004595 + ... + 555004616.

It is an arithmetic number, because the mean of its divisors is an integer number (3330027636).

Almost surely, 2^12210101321 is an apocalyptic number.

12210101321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12210101321 is a deficient number, since it is larger than the sum of its proper divisors (1110009223).

12210101321 is a wasteful number, since it uses less digits than its factorization.

12210101321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110009222.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12210101321 its reverse (12310101221), we get a palindrome (24520202542).

The spelling of 12210101321 in words is "twelve billion, two hundred ten million, one hundred one thousand, three hundred twenty-one".