122212343212221 has 64 divisors (see below), whose sum is σ = 171561121687296. Its totient is φ = 77304015360000.

The previous prime is 122212343212177. The next prime is 122212343212231.

It is a happy number.

122212343212221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 122212343212221 - 2²³ = 122212334823613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212343212231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7436999221 + ... + 7437015653.

It is an arithmetic number, because the mean of its divisors is an integer number (2680642526364).

Almost surely, 2^{122212343212221} is an apocalyptic number.

It is an amenable number.

122212343212221 is a deficient number, since it is larger than the sum of its proper divisors (49348778475075).

122212343212221 is a wasteful number, since it uses less digits than its factorization.

122212343212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26542.

The product of its digits is 9216, while the sum is 30.

The spelling of 122212343212221 in words is "one hundred twenty-two trillion, two hundred twelve billion, three hundred forty-three million, two hundred twelve thousand, two hundred twenty-one".