20122000057 has 2 divisors, whose sum is σ = 20122000058. Its totient is φ = 20122000056.

The previous prime is 20122000013. The next prime is 20122000079. The reversal of 20122000057 is 75000022102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18449517241 + 1672482816 = 135829^2 + 40896^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122000057 - 2⁷ = 20121999929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20121999998 and 20122000043.

It is not a weakly prime, because it can be changed into another prime (20122000007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061000028 + 10061000029.

It is an arithmetic number, because the mean of its divisors is an integer number (10061000029).

Almost surely, 2^20122000057 is an apocalyptic number.

It is an amenable number.

20122000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122000057 is an equidigital number, since it uses as much as digits as its factorization.

20122000057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

Adding to 20122000057 its reverse (75000022102), we get a palindrome (95122022159).

The spelling of 20122000057 in words is "twenty billion, one hundred twenty-two million, fifty-seven", and thus it is an aban number.