12202021211121 has 32 divisors (see below), whose sum is σ = 20690856806400. Its totient is φ = 6962002926480.

The previous prime is 12202021211069. The next prime is 12202021211131. The reversal of 12202021211121 is 12111212020221.

12202021211121 is a `hidden beast` number, since 1 + 220 + 202 + 121 + 1 + 121 = 666.

It is not a de Polignac number, because 12202021211121 - 2⁷ = 12202021210993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12202021211094 and 12202021211103.

It is not an unprimeable number, because it can be changed into a prime (12202021211131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48859485 + ... + 49108586.

It is an arithmetic number, because the mean of its divisors is an integer number (646589275200).

Almost surely, 2^{12202021211121} is an apocalyptic number.

It is an amenable number.

12202021211121 is a deficient number, since it is larger than the sum of its proper divisors (8488835595279).

12202021211121 is an equidigital number, since it uses as much as digits as its factorization.

12202021211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97968746 (or 97968740 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12202021211121 its reverse (12111212020221), we get a palindrome (24313233231342).

The spelling of 12202021211121 in words is "twelve trillion, two hundred two billion, twenty-one million, two hundred eleven thousand, one hundred twenty-one".