8215206044099 has 2 divisors, whose sum is σ = 8215206044100. Its totient is φ = 8215206044098.

The previous prime is 8215206044083. The next prime is 8215206044113. The reversal of 8215206044099 is 9904406025128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8215206044099 - 2⁴ = 8215206044083 is a prime.

It is a super-2 number, since 2×8215206044099² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (8215206044039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4107603022049 + 4107603022050.

It is an arithmetic number, because the mean of its divisors is an integer number (4107603022050).

Almost surely, 2^{8215206044099} is an apocalyptic number.

8215206044099 is a deficient number, since it is larger than the sum of its proper divisors (1).

8215206044099 is an equidigital number, since it uses as much as digits as its factorization.

8215206044099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 8215206044099 in words is "eight trillion, two hundred fifteen billion, two hundred six million, forty-four thousand, ninety-nine".