12202211112121 has 4 divisors (see below), whose sum is σ = 12211677530100. Its totient is φ = 12192744694144.

The previous prime is 12202211112059. The next prime is 12202211112193. The reversal of 12202211112121 is 12121111220221.

It is a happy number.

12202211112121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7912490797225 + 4289720314896 = 2812915^2 + 2071164^2 .

It is a cyclic number.

It is not a de Polignac number, because 12202211112121 - 2⁹ = 12202211111609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12202211122121) 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, 4733207056 + ... + 4733209633.

It is an arithmetic number, because the mean of its divisors is an integer number (3052919382525).

Almost surely, 2^{12202211112121} is an apocalyptic number.

It is an amenable number.

12202211112121 is a deficient number, since it is larger than the sum of its proper divisors (9466417979).

12202211112121 is an equidigital number, since it uses as much as digits as its factorization.

12202211112121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9466417978.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12202211112121 its reverse (12121111220221), we get a palindrome (24323322332342).

The spelling of 12202211112121 in words is "twelve trillion, two hundred two billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty-one".