220222020457 has 2 divisors, whose sum is σ = 220222020458. Its totient is φ = 220222020456.

The previous prime is 220222020437. The next prime is 220222020461. The reversal of 220222020457 is 754020222022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173771425881 + 46450594576 = 416859^2 + 215524^2 .

It is a cyclic number.

It is not a de Polignac number, because 220222020457 - 2⁷ = 220222020329 is a prime.

It is not a weakly prime, because it can be changed into another prime (220222020427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111010228 + 110111010229.

It is an arithmetic number, because the mean of its divisors is an integer number (110111010229).

Almost surely, 2^220222020457 is an apocalyptic number.

It is an amenable number.

220222020457 is a deficient number, since it is larger than the sum of its proper divisors (1).

220222020457 is an equidigital number, since it uses as much as digits as its factorization.

220222020457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 28.

Adding to 220222020457 its reverse (754020222022), we get a palindrome (974242242479).

The spelling of 220222020457 in words is "two hundred twenty billion, two hundred twenty-two million, twenty thousand, four hundred fifty-seven".