1022099 has 4 divisors (see below), whose sum is σ = 1100736.
Its totient is φ = 943464.
The previous prime is 1022083. The next prime is 1022113. The reversal of 1022099 is 9902201.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9902201 = 251 ⋅39451.
It is a cyclic number.
It is not a de Polignac number, because 1022099 - 24 = 1022083 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1022059) 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, 39299 + ... + 39324.
It is an arithmetic number, because the mean of its divisors is an integer number (275184).
21022099 is an apocalyptic number.
1022099 is a deficient number, since it is larger than the sum of its proper divisors (78637).
1022099 is an equidigital number, since it uses as much as digits as its factorization.
1022099 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 78636.
The product of its (nonzero) digits is 324, while the sum is 23.
The square root of 1022099 is about 1010.9891196249.
The cubic root of 1022099 is about 100.7312727005.
The spelling of 1022099 in words is "one million, twenty-two thousand, ninety-nine".