2111220197963 has 2 divisors, whose sum is σ = 2111220197964. Its totient is φ = 2111220197962.

The previous prime is 2111220197893. The next prime is 2111220197981. The reversal of 2111220197963 is 3697910221112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111220197963 - 2¹⁴ = 2111220181579 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111220197363) 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, 1055610098981 + 1055610098982.

It is an arithmetic number, because the mean of its divisors is an integer number (1055610098982).

Almost surely, 2^{2111220197963} is an apocalyptic number.

2111220197963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111220197963 is an equidigital number, since it uses as much as digits as its factorization.

2111220197963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 2111220197963 in words is "two trillion, one hundred eleven billion, two hundred twenty million, one hundred ninety-seven thousand, nine hundred sixty-three".