220302301991 has 2 divisors, whose sum is σ = 220302301992. Its totient is φ = 220302301990.

The previous prime is 220302301951. The next prime is 220302302029. The reversal of 220302301991 is 199103203022.

220302301991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220302301991 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220302301951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110151150995 + 110151150996.

It is an arithmetic number, because the mean of its divisors is an integer number (110151150996).

Almost surely, 2^220302301991 is an apocalyptic number.

220302301991 is a deficient number, since it is larger than the sum of its proper divisors (1).

220302301991 is an equidigital number, since it uses as much as digits as its factorization.

220302301991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 220302301991 in words is "two hundred twenty billion, three hundred two million, three hundred one thousand, nine hundred ninety-one".