122122323221221 has 32 divisors (see below), whose sum is σ = 126364357237248. Its totient is φ = 117981599708160.

The previous prime is 122122323221149. The next prime is 122122323221231.

122122323221221 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 122122323221221 - 2¹¹ = 122122323219173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122122323221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122122323221231) 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, 285124536 + ... + 285552526.

It is an arithmetic number, because the mean of its divisors is an integer number (3948886163664).

Almost surely, 2^{122122323221221} is an apocalyptic number.

It is an amenable number.

122122323221221 is a deficient number, since it is larger than the sum of its proper divisors (4242034016027).

122122323221221 is a wasteful number, since it uses less digits than its factorization.

122122323221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428581.

The product of its digits is 4608, while the sum is 28.

The spelling of 122122323221221 in words is "one hundred twenty-two trillion, one hundred twenty-two billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred twenty-one".