4167126121 has 2 divisors, whose sum is σ = 4167126122. Its totient is φ = 4167126120.

The previous prime is 4167126109. The next prime is 4167126127. The reversal of 4167126121 is 1216217614.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3836068096 + 331058025 = 61936^2 + 18195^2 .

It is a cyclic number.

It is not a de Polignac number, because 4167126121 - 2¹⁹ = 4166601833 is a prime.

It is not a weakly prime, because it can be changed into another prime (4167126127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2083563060 + 2083563061.

It is an arithmetic number, because the mean of its divisors is an integer number (2083563061).

Almost surely, 2^4167126121 is an apocalyptic number.

It is an amenable number.

4167126121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4167126121 is an equidigital number, since it uses as much as digits as its factorization.

4167126121 is an odious number, because the sum of its binary digits is odd.

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

The square root of 4167126121 is about 64553.2812566488. The cubic root of 4167126121 is about 1609.2081186064.

The spelling of 4167126121 in words is "four billion, one hundred sixty-seven million, one hundred twenty-six thousand, one hundred twenty-one".