12210122100221 has 8 divisors (see below), whose sum is σ = 12226159841184. Its totient is φ = 12194087436720.

The previous prime is 12210122100199. The next prime is 12210122100247. The reversal of 12210122100221 is 12200122101221.

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-12210122100221 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 12210122100221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210122100251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7225526 + ... + 8753768.

It is an arithmetic number, because the mean of its divisors is an integer number (1528269980148).

Almost surely, 2^{12210122100221} is an apocalyptic number.

It is an amenable number.

12210122100221 is a deficient number, since it is larger than the sum of its proper divisors (16037740963).

12210122100221 is an equidigital number, since it uses as much as digits as its factorization.

12210122100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538731.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12210122100221 its reverse (12200122101221), we get a palindrome (24410244201442).

It can be divided in two parts, 1221012 and 2100221, that added together give a palindrome (3321233).

The spelling of 12210122100221 in words is "twelve trillion, two hundred ten billion, one hundred twenty-two million, one hundred thousand, two hundred twenty-one".