220122061 has 2 divisors, whose sum is σ = 220122062. Its totient is φ = 220122060.

The previous prime is 220122047. The next prime is 220122101. The reversal of 220122061 is 160221022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192349161 + 27772900 = 13869^2 + 5270^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122061 - 2⁹ = 220121549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220129061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061030 + 110061031.

It is an arithmetic number, because the mean of its divisors is an integer number (110061031).

Almost surely, 2^220122061 is an apocalyptic number.

It is an amenable number.

220122061 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122061 is an equidigital number, since it uses as much as digits as its factorization.

220122061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 220122061 is about 14836.5110790913. The cubic root of 220122061 is about 603.7926983649.

Adding to 220122061 its reverse (160221022), we get a palindrome (380343083).

The spelling of 220122061 in words is "two hundred twenty million, one hundred twenty-two thousand, sixty-one".