2105222399 has 8 divisors (see below), whose sum is σ = 2438927520. Its totient is φ = 1779757056.

The previous prime is 2105222389. The next prime is 2105222443. The reversal of 2105222399 is 9932225012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2105222399 is a prime.

It is a super-2 number, since 2×2105222399² = 8863922698502630402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105222389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059394 + ... + 2060415.

It is an arithmetic number, because the mean of its divisors is an integer number (304865940).

Almost surely, 2^2105222399 is an apocalyptic number.

2105222399 is a deficient number, since it is larger than the sum of its proper divisors (333705121).

2105222399 is an equidigital number, since it uses as much as digits as its factorization.

2105222399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4119889.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 2105222399 is about 45882.7026122045. The cubic root of 2105222399 is about 1281.6398251807.

The spelling of 2105222399 in words is "two billion, one hundred five million, two hundred twenty-two thousand, three hundred ninety-nine".