122210111221201 has 8 divisors (see below), whose sum is σ = 124534883254824. Its totient is φ = 119886039960960.

The previous prime is 122210111221199. The next prime is 122210111221213. The reversal of 122210111221201 is 102122111012221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 41071884300225 + 81138226920976 = 6408735^2 + 9007676^2 .

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 122210111221201 - 2¹ = 122210111221199 is a prime.

It is a super-2 number, since 2×122210111221201² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122210111221001) 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, 174841236 + ... + 175538821.

It is an arithmetic number, because the mean of its divisors is an integer number (15566860406853).

Almost surely, 2^{122210111221201} is an apocalyptic number.

It is an amenable number.

122210111221201 is a deficient number, since it is larger than the sum of its proper divisors (2324772033623).

122210111221201 is an equidigital number, since it uses as much as digits as its factorization.

122210111221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350386691.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 122210111221201 its reverse (102122111012221), we get a palindrome (224332222233422).

The spelling of 122210111221201 in words is "one hundred twenty-two trillion, two hundred ten billion, one hundred eleven million, two hundred twenty-one thousand, two hundred one".