122210333221 has 4 divisors (see below), whose sum is σ = 122248755244. Its totient is φ = 122171911200.

The previous prime is 122210333183. The next prime is 122210333243. The reversal of 122210333221 is 122333012221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122333012221 = 7 ⋅17476144603.

It can be written as a sum of positive squares in 2 ways, for example, as 4828721121 + 117381612100 = 69489^2 + 342610^2 .

It is a cyclic number.

It is not a de Polignac number, because 122210333221 - 2⁹ = 122210332709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122210333192 and 122210333201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210333251) 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, 19206240 + ... + 19212601.

It is an arithmetic number, because the mean of its divisors is an integer number (30562188811).

Almost surely, 2^122210333221 is an apocalyptic number.

It is an amenable number.

122210333221 is a deficient number, since it is larger than the sum of its proper divisors (38422023).

122210333221 is an equidigital number, since it uses as much as digits as its factorization.

122210333221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38422022.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 122210333221 its reverse (122333012221), we get a palindrome (244543345442).

The spelling of 122210333221 in words is "one hundred twenty-two billion, two hundred ten million, three hundred thirty-three thousand, two hundred twenty-one".