2230220981 has 2 divisors, whose sum is σ = 2230220982. Its totient is φ = 2230220980.

The previous prime is 2230220947. The next prime is 2230220999. The reversal of 2230220981 is 1890220322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1470722500 + 759498481 = 38350^2 + 27559^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230220981 - 2¹⁴ = 2230204597 is a prime.

It is a super-2 number, since 2×2230220981² = 9947771248185204722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2230220281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115110490 + 1115110491.

It is an arithmetic number, because the mean of its divisors is an integer number (1115110491).

Almost surely, 2^2230220981 is an apocalyptic number.

It is an amenable number.

2230220981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2230220981 is an equidigital number, since it uses as much as digits as its factorization.

2230220981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2230220981 is about 47225.2155209481. The cubic root of 2230220981 is about 1306.5197096792.

The spelling of 2230220981 in words is "two billion, two hundred thirty million, two hundred twenty thousand, nine hundred eighty-one".