220112021057 has 2 divisors, whose sum is σ = 220112021058. Its totient is φ = 220112021056.

The previous prime is 220112020993. The next prime is 220112021069. The reversal of 220112021057 is 750120211022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178420915201 + 41691105856 = 422399^2 + 204184^2 .

It is a cyclic number.

It is not a de Polignac number, because 220112021057 - 2⁶ = 220112020993 is a prime.

It is a super-2 number, since 2×220112021057² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220112021357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056010528 + 110056010529.

It is an arithmetic number, because the mean of its divisors is an integer number (110056010529).

Almost surely, 2^220112021057 is an apocalyptic number.

It is an amenable number.

220112021057 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112021057 is an equidigital number, since it uses as much as digits as its factorization.

220112021057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 220112021057 its reverse (750120211022), we get a palindrome (970232232079).

The spelling of 220112021057 in words is "two hundred twenty billion, one hundred twelve million, twenty-one thousand, fifty-seven".