122020201201221 has 12 divisors (see below), whose sum is σ = 180001431559872. Its totient is φ = 79616017804776.

The previous prime is 122020201201211. The next prime is 122020201201271. The reversal of 122020201201221 is 122102102020221.

It is a happy number.

122020201201221 is a `hidden beast` number, since 1 + 2 + 20 + 20 + 201 + 201 + 221 = 666.

It is not a de Polignac number, because 122020201201221 - 2²³ = 122020192812613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122020201201194 and 122020201201203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020201201211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144231915891 + ... + 144231916736.

It is an arithmetic number, because the mean of its divisors is an integer number (15000119296656).

Almost surely, 2^{122020201201221} is an apocalyptic number.

It is an amenable number.

122020201201221 is a deficient number, since it is larger than the sum of its proper divisors (57981230358651).

122020201201221 is a wasteful number, since it uses less digits than its factorization.

122020201201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288463832680 (or 288463832677 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 122020201201221 its reverse (122102102020221), we get a palindrome (244122303221442).

The spelling of 122020201201221 in words is "one hundred twenty-two trillion, twenty billion, two hundred one million, two hundred one thousand, two hundred twenty-one".