2122277 has 2 divisors, whose sum is σ = 2122278.
Its totient is φ = 2122276.
The previous prime is 2122259. The next prime is 2122303. The reversal of 2122277 is 7722212.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 2076481 + 45796 = 1441^2 + 214^2
It is a cyclic number.
It is not a de Polignac number, because 2122277 - 26 = 2122213 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2122777) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061138 + 1061139.
It is an arithmetic number, because the mean of its divisors is an integer number (1061139).
22122277 is an apocalyptic number.
It is an amenable number.
2122277 is a deficient number, since it is larger than the sum of its proper divisors (1).
2122277 is an equidigital number, since it uses as much as digits as its factorization.
2122277 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 784, while the sum is 23.
The square root of 2122277 is about 1456.8036930211.
The cubic root of 2122277 is about 128.5091415522.
Adding to 2122277 its reverse (7722212), we get a palindrome (9844489).
The spelling of 2122277 in words is "two million, one hundred twenty-two thousand, two hundred seventy-seven".