220122022217 has 2 divisors, whose sum is σ = 220122022218. Its totient is φ = 220122022216.

The previous prime is 220122022177. The next prime is 220122022223. The reversal of 220122022217 is 712220221022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207800134201 + 12321888016 = 455851^2 + 111004^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122022217 - 2¹⁴ = 220122005833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220122022192 and 220122022201.

It is not a weakly prime, because it can be changed into another prime (220122022517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061011108 + 110061011109.

It is an arithmetic number, because the mean of its divisors is an integer number (110061011109).

Almost surely, 2^220122022217 is an apocalyptic number.

It is an amenable number.

220122022217 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122022217 is an equidigital number, since it uses as much as digits as its factorization.

220122022217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

Adding to 220122022217 its reverse (712220221022), we get a palindrome (932342243239).

The spelling of 220122022217 in words is "two hundred twenty billion, one hundred twenty-two million, twenty-two thousand, two hundred seventeen".