1220104079 has 2 divisors, whose sum is σ = 1220104080. Its totient is φ = 1220104078.

The previous prime is 1220104051. The next prime is 1220104111. The reversal of 1220104079 is 9704010221.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220104079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220164079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610052039 + 610052040.

It is an arithmetic number, because the mean of its divisors is an integer number (610052040).

Almost surely, 2^1220104079 is an apocalyptic number.

1220104079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220104079 is an equidigital number, since it uses as much as digits as its factorization.

1220104079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1220104079 is about 34929.9882479224. The cubic root of 1220104079 is about 1068.5601149422.

The spelling of 1220104079 in words is "one billion, two hundred twenty million, one hundred four thousand, seventy-nine".