2242275781 has 2 divisors, whose sum is σ = 2242275782. Its totient is φ = 2242275780.

The previous prime is 2242275743. The next prime is 2242275803. The reversal of 2242275781 is 1875722422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2092605025 + 149670756 = 45745^2 + 12234^2 .

It is a cyclic number.

It is not a de Polignac number, because 2242275781 - 2⁷ = 2242275653 is a prime.

It is a super-2 number, since 2×2242275781² = 10055601356118319922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2242675781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121137890 + 1121137891.

It is an arithmetic number, because the mean of its divisors is an integer number (1121137891).

Almost surely, 2^2242275781 is an apocalyptic number.

It is an amenable number.

2242275781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2242275781 is an equidigital number, since it uses as much as digits as its factorization.

2242275781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125440, while the sum is 40.

The square root of 2242275781 is about 47352.6744862421. The cubic root of 2242275781 is about 1308.8694830595.

The spelling of 2242275781 in words is "two billion, two hundred forty-two million, two hundred seventy-five thousand, seven hundred eighty-one".