102222019 has 4 divisors (see below), whose sum is σ = 102507120. Its totient is φ = 101936920.

The previous prime is 102221989. The next prime is 102222023. The reversal of 102222019 is 910222201.

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 102222019 - 2⁷ = 102221891 is a prime.

It is a super-2 number, since 2×102222019² = 20898682336872722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102221987 and 102222005.

It is not an unprimeable number, because it can be changed into a prime (102222049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142012 + ... + 142729.

It is an arithmetic number, because the mean of its divisors is an integer number (25626780).

Almost surely, 2^102222019 is an apocalyptic number.

102222019 is a deficient number, since it is larger than the sum of its proper divisors (285101).

102222019 is an equidigital number, since it uses as much as digits as its factorization.

102222019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285100.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 102222019 is about 10110.4905420064. The cubic root of 102222019 is about 467.5716290487.

The spelling of 102222019 in words is "one hundred two million, two hundred twenty-two thousand, nineteen".