10220021057 has 2 divisors, whose sum is σ = 10220021058. Its totient is φ = 10220021056.

The previous prime is 10220021011. The next prime is 10220021059. The reversal of 10220021057 is 75012002201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6205658176 + 4014362881 = 78776^2 + 63359^2 .

It is a cyclic number.

It is not a de Polignac number, because 10220021057 - 2²⁰ = 10218972481 is a prime.

Together with 10220021059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10220021059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110010528 + 5110010529.

It is an arithmetic number, because the mean of its divisors is an integer number (5110010529).

Almost surely, 2^10220021057 is an apocalyptic number.

It is an amenable number.

10220021057 is a deficient number, since it is larger than the sum of its proper divisors (1).

10220021057 is an equidigital number, since it uses as much as digits as its factorization.

10220021057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

Adding to 10220021057 its reverse (75012002201), we get a palindrome (85232023258).

The spelling of 10220021057 in words is "ten billion, two hundred twenty million, twenty-one thousand, fifty-seven".