2111220200057 has 2 divisors, whose sum is σ = 2111220200058. Its totient is φ = 2111220200056.

The previous prime is 2111220199999. The next prime is 2111220200069. The reversal of 2111220200057 is 7500020221112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2075339884816 + 35880315241 = 1440604^2 + 189421^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111220200057 - 2³⁴ = 2094040330873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111220260057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055610100028 + 1055610100029.

It is an arithmetic number, because the mean of its divisors is an integer number (1055610100029).

Almost surely, 2^{2111220200057} is an apocalyptic number.

It is an amenable number.

2111220200057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111220200057 is an equidigital number, since it uses as much as digits as its factorization.

2111220200057 is an evil number, because the sum of its binary digits is even.

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

Adding to 2111220200057 its reverse (7500020221112), we get a palindrome (9611240421169).

The spelling of 2111220200057 in words is "two trillion, one hundred eleven billion, two hundred twenty million, two hundred thousand, fifty-seven".