2022978281 has 2 divisors, whose sum is σ = 2022978282. Its totient is φ = 2022978280.

The previous prime is 2022978247. The next prime is 2022978337. The reversal of 2022978281 is 1828792202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1972781056 + 50197225 = 44416^2 + 7085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2022978281 is a prime.

It is a super-2 number, since 2×2022978281² = 8184882250795429922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2022908281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011489140 + 1011489141.

It is an arithmetic number, because the mean of its divisors is an integer number (1011489141).

Almost surely, 2^2022978281 is an apocalyptic number.

It is an amenable number.

2022978281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022978281 is an equidigital number, since it uses as much as digits as its factorization.

2022978281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 2022978281 is about 44977.5308459680. The cubic root of 2022978281 is about 1264.7278247098.

The spelling of 2022978281 in words is "two billion, twenty-two million, nine hundred seventy-eight thousand, two hundred eighty-one".