122222301221 has 4 divisors (see below), whose sum is σ = 122246883372. Its totient is φ = 122197719072.

The previous prime is 122222301203. The next prime is 122222301233. The reversal of 122222301221 is 122103222221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90006000100 + 32216301121 = 300010^2 + 179489^2 .

It is a cyclic number.

It is not a de Polignac number, because 122222301221 - 2³⁰ = 121148559397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122222301193 and 122222301202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222301241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12283616 + ... + 12293561.

It is an arithmetic number, because the mean of its divisors is an integer number (30561720843).

Almost surely, 2^122222301221 is an apocalyptic number.

It is an amenable number.

122222301221 is a deficient number, since it is larger than the sum of its proper divisors (24582151).

122222301221 is an equidigital number, since it uses as much as digits as its factorization.

122222301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24582150.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 122222301221 its reverse (122103222221), we get a palindrome (244325523442).

The spelling of 122222301221 in words is "one hundred twenty-two billion, two hundred twenty-two million, three hundred one thousand, two hundred twenty-one".