2230420981 has 2 divisors, whose sum is σ = 2230420982. Its totient is φ = 2230420980.

The previous prime is 2230420949. The next prime is 2230420987. The reversal of 2230420981 is 1890240322.

2230420981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2187058756 + 43362225 = 46766^2 + 6585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2230420981 - 2⁵ = 2230420949 is a prime.

It is a super-2 number, since 2×2230420981² = 9949555504970004722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2230420987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1115210490 + 1115210491.

It is an arithmetic number, because the mean of its divisors is an integer number (1115210491).

Almost surely, 2^2230420981 is an apocalyptic number.

It is an amenable number.

2230420981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2230420981 is an equidigital number, since it uses as much as digits as its factorization.

2230420981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 2230420981 is about 47227.3329863121. The cubic root of 2230420981 is about 1306.5587635268.

The spelling of 2230420981 in words is "two billion, two hundred thirty million, four hundred twenty thousand, nine hundred eighty-one".