2770121 has 2 divisors, whose sum is σ = 2770122. Its totient is φ = 2770120.

The previous prime is 2770093. The next prime is 2770169. The reversal of 2770121 is 1210772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2768896 + 1225 = 1664^2 + 35^2 .

It is a cyclic number.

It is not a de Polignac number, because 2770121 - 2¹⁰ = 2769097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2770093 and 2770102.

It is not a weakly prime, because it can be changed into another prime (2770171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385060 + 1385061.

It is an arithmetic number, because the mean of its divisors is an integer number (1385061).

2^2770121 is an apocalyptic number.

It is an amenable number.

2770121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2770121 is an equidigital number, since it uses as much as digits as its factorization.

2770121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 2770121 is about 1664.3680482393. The cubic root of 2770121 is about 140.4428324983.

Adding to 2770121 its reverse (1210772), we get a palindrome (3980893).

The spelling of 2770121 in words is "two million, seven hundred seventy thousand, one hundred twenty-one".