122212002211221 has 16 divisors (see below), whose sum is σ = 175484666107520. Its totient is φ = 75207057906240.

The previous prime is 122212002211207. The next prime is 122212002211261. The reversal of 122212002211221 is 122112200212221.

It is not a de Polignac number, because 122212002211221 - 2³⁷ = 122074563257749 is a prime.

It is a super-3 number, since 3×122212002211221³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212002211261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2377440 + ... + 15813798.

It is an arithmetic number, because the mean of its divisors is an integer number (10967791631720).

Almost surely, 2^{122212002211221} is an apocalyptic number.

It is an amenable number.

122212002211221 is a deficient number, since it is larger than the sum of its proper divisors (53272663896299).

122212002211221 is a wasteful number, since it uses less digits than its factorization.

122212002211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13669596.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 122212002211221 its reverse (122112200212221), we get a palindrome (244324202423442).

The spelling of 122212002211221 in words is "one hundred twenty-two trillion, two hundred twelve billion, two million, two hundred eleven thousand, two hundred twenty-one".