4121220120079 has 2 divisors, whose sum is σ = 4121220120080. Its totient is φ = 4121220120078.

The previous prime is 4121220120047. The next prime is 4121220120179. The reversal of 4121220120079 is 9700210221214.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4121220120079 - 2⁵ = 4121220120047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4121220120079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4121220120179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2060610060039 + 2060610060040.

It is an arithmetic number, because the mean of its divisors is an integer number (2060610060040).

Almost surely, 2^{4121220120079} is an apocalyptic number.

4121220120079 is a deficient number, since it is larger than the sum of its proper divisors (1).

4121220120079 is an equidigital number, since it uses as much as digits as its factorization.

4121220120079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 4121220120079 in words is "four trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twenty thousand, seventy-nine".