2100220079 has 2 divisors, whose sum is σ = 2100220080. Its totient is φ = 2100220078.

The previous prime is 2100220033. The next prime is 2100220097. The reversal of 2100220079 is 9700220012.

Together with next prime (2100220097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100220079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100220099) 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, 1050110039 + 1050110040.

It is an arithmetic number, because the mean of its divisors is an integer number (1050110040).

Almost surely, 2^2100220079 is an apocalyptic number.

2100220079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100220079 is an equidigital number, since it uses as much as digits as its factorization.

2100220079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2100220079 is about 45828.1581454023. The cubic root of 2100220079 is about 1280.6238981204.

The spelling of 2100220079 in words is "two billion, one hundred million, two hundred twenty thousand, seventy-nine".