4570220981 has 2 divisors, whose sum is σ = 4570220982. Its totient is φ = 4570220980.

The previous prime is 4570220969. The next prime is 4570220999. The reversal of 4570220981 is 1890220754.

4570220981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4564218481 + 6002500 = 67559^2 + 2450^2 .

It is a cyclic number.

It is not a de Polignac number, because 4570220981 - 2¹⁰ = 4570219957 is a prime.

It is a super-2 number, since 2×4570220981² = 41773839630345204722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4570220881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2285110490 + 2285110491.

It is an arithmetic number, because the mean of its divisors is an integer number (2285110491).

Almost surely, 2^4570220981 is an apocalyptic number.

It is an amenable number.

4570220981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4570220981 is an equidigital number, since it uses as much as digits as its factorization.

4570220981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 4570220981 is about 67603.4095367978. The cubic root of 4570220981 is about 1659.5069156532.

The spelling of 4570220981 in words is "four billion, five hundred seventy million, two hundred twenty thousand, nine hundred eighty-one".