219227312099 has 2 divisors, whose sum is σ = 219227312100. Its totient is φ = 219227312098.

The previous prime is 219227312089. The next prime is 219227312119. The reversal of 219227312099 is 990213722912.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-219227312099 is a prime.

It is a super-2 number, since 2×219227312099² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (219227312089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109613656049 + 109613656050.

It is an arithmetic number, because the mean of its divisors is an integer number (109613656050).

Almost surely, 2^219227312099 is an apocalyptic number.

219227312099 is a deficient number, since it is larger than the sum of its proper divisors (1).

219227312099 is an equidigital number, since it uses as much as digits as its factorization.

219227312099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 219227312099 in words is "two hundred nineteen billion, two hundred twenty-seven million, three hundred twelve thousand, ninety-nine".