12210100101221 has 8 divisors (see below), whose sum is σ = 13320450800064. Its totient is φ = 11099806335520.

The previous prime is 12210100101193. The next prime is 12210100101239.

12210100101221 is nontrivially palindromic in base 10.

12210100101221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12210100101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210100101196 and 12210100101205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210100101421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13784240 + ... + 14643273.

It is an arithmetic number, because the mean of its divisors is an integer number (1665056350008).

Almost surely, 2^{12210100101221} is an apocalyptic number.

12210100101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12210100101221 is a deficient number, since it is larger than the sum of its proper divisors (1110350698843).

12210100101221 is a wasteful number, since it uses less digits than its factorization.

12210100101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28466571.

The product of its (nonzero) digits is 16, while the sum is 14.

It can be divided in two parts, 12210100 and 101221, that added together give a palindrome (12311321).

The spelling of 12210100101221 in words is "twelve trillion, two hundred ten billion, one hundred million, one hundred one thousand, two hundred twenty-one".