1000022099 has 4 divisors (see below), whose sum is σ = 1000780440.
Its totient is φ = 999263760.
The previous prime is 1000022081. The next prime is 1000022173. The reversal of 1000022099 is 9902200001.
1000022099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 1000022099 - 28 = 1000021843 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (1000022039) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377189 + ... + 379830.
It is an arithmetic number, because the mean of its divisors is an integer number (250195110).
Almost surely, 21000022099 is an apocalyptic number.
1000022099 is a deficient number, since it is larger than the sum of its proper divisors (758341).
1000022099 is an equidigital number, since it uses as much as digits as its factorization.
1000022099 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 758340.
The product of its (nonzero) digits is 324, while the sum is 23.
The square root of 1000022099 is about 31623.1260156234.
The cubic root of 1000022099 is about 1000.0073662791.
The spelling of 1000022099 in words is "one billion, twenty-two thousand, ninety-nine".