2222281 has 2 divisors, whose sum is σ = 2222282. Its totient is φ = 2222280.

The previous prime is 2222273. The next prime is 2222287. The reversal of 2222281 is 1822222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2175625 + 46656 = 1475^2 + 216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2222281 - 2³ = 2222273 is a prime.

It is a super-2 number, since 2×2222281² = 9877065685922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2222287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111140 + 1111141.

It is an arithmetic number, because the mean of its divisors is an integer number (1111141).

2^2222281 is an apocalyptic number.

It is an amenable number.

2222281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222281 is an equidigital number, since it uses as much as digits as its factorization.

2222281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256, while the sum is 19.

The square root of 2222281 is about 1490.7316995355. The cubic root of 2222281 is about 130.4967385649.

The spelling of 2222281 in words is "two million, two hundred twenty-two thousand, two hundred eighty-one".