2201100211957 has 2 divisors, whose sum is σ = 2201100211958. Its totient is φ = 2201100211956.

The previous prime is 2201100211951. The next prime is 2201100212021. The reversal of 2201100211957 is 7591120011022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1737864794961 + 463235416996 = 1318281^2 + 680614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201100211957 - 2¹¹ = 2201100209909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2201100211951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1100550105978 + 1100550105979.

It is an arithmetic number, because the mean of its divisors is an integer number (1100550105979).

Almost surely, 2^{2201100211957} is an apocalyptic number.

It is an amenable number.

2201100211957 is a deficient number, since it is larger than the sum of its proper divisors (1).

2201100211957 is an equidigital number, since it uses as much as digits as its factorization.

2201100211957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

Adding to 2201100211957 its reverse (7591120011022), we get a palindrome (9792220222979).

The spelling of 2201100211957 in words is "two trillion, two hundred one billion, one hundred million, two hundred eleven thousand, nine hundred fifty-seven".