122213222312221 has 8 divisors (see below), whose sum is σ = 126766419013080. Its totient is φ = 117682622121792.

The previous prime is 122213222312197. The next prime is 122213222312239.

122213222312221 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 29668610672100 + 92544611640121 = 5446890^2 + 9620011^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 122213222312221 - 2³¹ = 122211074828573 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 122213222312221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122213222315221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5649116590 + ... + 5649138223.

It is an arithmetic number, because the mean of its divisors is an integer number (15845802376635).

Almost surely, 2^{122213222312221} is an apocalyptic number.

It is an amenable number.

122213222312221 is a deficient number, since it is larger than the sum of its proper divisors (4553196700859).

122213222312221 is a wasteful number, since it uses less digits than its factorization.

122213222312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11298255215.

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

The spelling of 122213222312221 in words is "one hundred twenty-two trillion, two hundred thirteen billion, two hundred twenty-two million, three hundred twelve thousand, two hundred twenty-one".