2211108203947 has 2 divisors, whose sum is σ = 2211108203948. Its totient is φ = 2211108203946.

The previous prime is 2211108203933. The next prime is 2211108203951. The reversal of 2211108203947 is 7493028011122.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211108203947 is a prime.

It is not a weakly prime, because it can be changed into another prime (2211108203347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105554101973 + 1105554101974.

It is an arithmetic number, because the mean of its divisors is an integer number (1105554101974).

Almost surely, 2^{2211108203947} is an apocalyptic number.

2211108203947 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211108203947 is an equidigital number, since it uses as much as digits as its factorization.

2211108203947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 2211108203947 in words is "two trillion, two hundred eleven billion, one hundred eight million, two hundred three thousand, nine hundred forty-seven".