4115505221 has 2 divisors, whose sum is σ = 4115505222. Its totient is φ = 4115505220.

The previous prime is 4115505211. The next prime is 4115505311. The reversal of 4115505221 is 1225055114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2129822500 + 1985682721 = 46150^2 + 44561^2 .

It is a cyclic number.

It is not a de Polignac number, because 4115505221 - 2⁶ = 4115505157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4115505211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2057752610 + 2057752611.

It is an arithmetic number, because the mean of its divisors is an integer number (2057752611).

Almost surely, 2^4115505221 is an apocalyptic number.

It is an amenable number.

4115505221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4115505221 is an equidigital number, since it uses as much as digits as its factorization.

4115505221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 4115505221 is about 64152.2035552950. The cubic root of 4115505221 is about 1602.5357215175.

The spelling of 4115505221 in words is "four billion, one hundred fifteen million, five hundred five thousand, two hundred twenty-one".