12222202202121 has 16 divisors (see below), whose sum is σ = 17849869344000. Its totient is φ = 7404390244608.

The previous prime is 12222202202057. The next prime is 12222202202123. The reversal of 12222202202121 is 12120220222221.

It is not a de Polignac number, because 12222202202121 - 2⁶ = 12222202202057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12222202202123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4131912721 + ... + 4131915678.

It is an arithmetic number, because the mean of its divisors is an integer number (1115616834000).

Almost surely, 2^{12222202202121} is an apocalyptic number.

It is an amenable number.

12222202202121 is a deficient number, since it is larger than the sum of its proper divisors (5627667141879).

12222202202121 is a wasteful number, since it uses less digits than its factorization.

12222202202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8263828448.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 12222202202121 its reverse (12120220222221), we get a palindrome (24342422424342).

The spelling of 12222202202121 in words is "twelve trillion, two hundred twenty-two billion, two hundred two million, two hundred two thousand, one hundred twenty-one".