12202120100221 has 4 divisors (see below), whose sum is σ = 12408935695200. Its totient is φ = 11995304505244.

The previous prime is 12202120100213. The next prime is 12202120100231. The reversal of 12202120100221 is 12200102120221.

It is a happy number.

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 12202120100221 - 2³ = 12202120100213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12202120100195 and 12202120100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202120100231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103407797401 + ... + 103407797518.

It is an arithmetic number, because the mean of its divisors is an integer number (3102233923800).

Almost surely, 2^{12202120100221} is an apocalyptic number.

It is an amenable number.

12202120100221 is a deficient number, since it is larger than the sum of its proper divisors (206815594979).

12202120100221 is an equidigital number, since it uses as much as digits as its factorization.

12202120100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206815594978.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12202120100221 its reverse (12200102120221), we get a palindrome (24402222220442).

The spelling of 12202120100221 in words is "twelve trillion, two hundred two billion, one hundred twenty million, one hundred thousand, two hundred twenty-one".