2216257502009 has 2 divisors, whose sum is σ = 2216257502010. Its totient is φ = 2216257502008.

The previous prime is 2216257501981. The next prime is 2216257502077. The reversal of 2216257502009 is 9002057526122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1457747146384 + 758510355625 = 1207372^2 + 870925^2 .

It is a cyclic number.

It is not a de Polignac number, because 2216257502009 - 2¹² = 2216257497913 is a prime.

It is a super-2 number, since 2×2216257502009² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2216257522009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1108128751004 + 1108128751005.

It is an arithmetic number, because the mean of its divisors is an integer number (1108128751005).

Almost surely, 2^{2216257502009} is an apocalyptic number.

It is an amenable number.

2216257502009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2216257502009 is an equidigital number, since it uses as much as digits as its factorization.

2216257502009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 2216257502009 in words is "two trillion, two hundred sixteen billion, two hundred fifty-seven million, five hundred two thousand, nine".