12202011221121 has 56 divisors (see below), whose sum is σ = 18521892133920. Its totient is φ = 8033702829696.

The previous prime is 12202011221033. The next prime is 12202011221123. The reversal of 12202011221121 is 12112211020221.

12202011221121 is a `hidden beast` number, since 1 + 220 + 201 + 1 + 221 + 1 + 21 = 666.

It is not a de Polignac number, because 12202011221121 - 2³⁸ = 11927133314177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12202011221094 and 12202011221103.

It is not an unprimeable number, because it can be changed into a prime (12202011221123) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 170533465 + ... + 170605001.

It is an arithmetic number, because the mean of its divisors is an integer number (330748073820).

Almost surely, 2^{12202011221121} is an apocalyptic number.

It is an amenable number.

12202011221121 is a deficient number, since it is larger than the sum of its proper divisors (6319880912799).

12202011221121 is an frugal number, since it uses more digits than its factorization.

12202011221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74457 (or 74442 counting only the distinct ones).

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

Adding to 12202011221121 its reverse (12112211020221), we get a palindrome (24314222241342).

The spelling of 12202011221121 in words is "twelve trillion, two hundred two billion, eleven million, two hundred twenty-one thousand, one hundred twenty-one".