2174221079 has 2 divisors, whose sum is σ = 2174221080. Its totient is φ = 2174221078.

The previous prime is 2174221057. The next prime is 2174221097. The reversal of 2174221079 is 9701224712.

Together with next prime (2174221097) 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-2174221079 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 (2174221019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087110539 + 1087110540.

It is an arithmetic number, because the mean of its divisors is an integer number (1087110540).

Almost surely, 2^2174221079 is an apocalyptic number.

2174221079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2174221079 is an equidigital number, since it uses as much as digits as its factorization.

2174221079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 2174221079 is about 46628.5436079661. The cubic root of 2174221079 is about 1295.4914984132.

The spelling of 2174221079 in words is "two billion, one hundred seventy-four million, two hundred twenty-one thousand, seventy-nine".