12202121211121 has 8 divisors (see below), whose sum is σ = 12211317800640. Its totient is φ = 12192928059312.

The previous prime is 12202121211109. The next prime is 12202121211127. The reversal of 12202121211121 is 12111212120221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12202121211121 - 2¹⁷ = 12202121080049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12202121211127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6264451 + ... + 7977943.

It is an arithmetic number, because the mean of its divisors is an integer number (1526414725080).

Almost surely, 2^{12202121211121} is an apocalyptic number.

It is an amenable number.

12202121211121 is a deficient number, since it is larger than the sum of its proper divisors (9196589519).

12202121211121 is a wasteful number, since it uses less digits than its factorization.

12202121211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718855.

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

Adding to 12202121211121 its reverse (12111212120221), we get a palindrome (24313333331342).

The spelling of 12202121211121 in words is "twelve trillion, two hundred two billion, one hundred twenty-one million, two hundred eleven thousand, one hundred twenty-one".