2218910019 has 4 divisors (see below), whose sum is σ = 2958546696. Its totient is φ = 1479273344.

The previous prime is 2218910009. The next prime is 2218910021. The reversal of 2218910019 is 9100198122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2218910019 - 2⁹ = 2218909507 is a prime.

It is a super-2 number, since 2×2218910019² = 9847123344837160722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2218910009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369818334 + ... + 369818339.

It is an arithmetic number, because the mean of its divisors is an integer number (739636674).

Almost surely, 2^2218910019 is an apocalyptic number.

2218910019 is a deficient number, since it is larger than the sum of its proper divisors (739636677).

2218910019 is an equidigital number, since it uses as much as digits as its factorization.

2218910019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739636676.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 2218910019 is about 47105.3077582559. The cubic root of 2218910019 is about 1304.3072161458.

The spelling of 2218910019 in words is "two billion, two hundred eighteen million, nine hundred ten thousand, nineteen".