12202122110221 has 4 divisors (see below), whose sum is σ = 12202211748892. Its totient is φ = 12202032471552.

The previous prime is 12202122110203. The next prime is 12202122110323. The reversal of 12202122110221 is 12201122120221.

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 5846429007721 + 6355693102500 = 2417939^2 + 2521050^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202122110221 - 2⁴¹ = 10003098854669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202132110221) 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, 44614836 + ... + 44887501.

It is an arithmetic number, because the mean of its divisors is an integer number (3050552937223).

Almost surely, 2^{12202122110221} is an apocalyptic number.

It is an amenable number.

12202122110221 is a deficient number, since it is larger than the sum of its proper divisors (89638671).

12202122110221 is an equidigital number, since it uses as much as digits as its factorization.

12202122110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89638670.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12202122110221 its reverse (12201122120221), we get a palindrome (24403244230442).

The spelling of 12202122110221 in words is "twelve trillion, two hundred two billion, one hundred twenty-two million, one hundred ten thousand, two hundred twenty-one".