12200102210221 has 4 divisors (see below), whose sum is σ = 12202048316700. Its totient is φ = 12198156103744.

The previous prime is 12200102210209. The next prime is 12200102210269. The reversal of 12200102210221 is 12201220100221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3092146402500 + 9107955807721 = 1758450^2 + 3017939^2 .

It is a cyclic number.

It is not a de Polignac number, because 12200102210221 - 2¹⁵ = 12200102177453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12200102210195 and 12200102210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200102210921) 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, 973043836 + ... + 973056373.

It is an arithmetic number, because the mean of its divisors is an integer number (3050512079175).

Almost surely, 2^{12200102210221} is an apocalyptic number.

It is an amenable number.

12200102210221 is a deficient number, since it is larger than the sum of its proper divisors (1946106479).

12200102210221 is an equidigital number, since it uses as much as digits as its factorization.

12200102210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1946106478.

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

Adding to 12200102210221 its reverse (12201220100221), we get a palindrome (24401322310442).

The spelling of 12200102210221 in words is "twelve trillion, two hundred billion, one hundred two million, two hundred ten thousand, two hundred twenty-one".