2220019 has 4 divisors (see below), whose sum is σ = 2223000. Its totient is φ = 2217040.

The previous prime is 2220007. The next prime is 2220041. The reversal of 2220019 is 9100222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9100222 = 2 ⋅4550111.

It is a cyclic number.

It is not a de Polignac number, because 2220019 - 2²¹ = 122867 is a prime.

It is a super-2 number, since 2×2220019² = 9856968720722, 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 = 2219984 and 2220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220059) 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, 732 + ... + 2230.

It is an arithmetic number, because the mean of its divisors is an integer number (555750).

2^2220019 is an apocalyptic number.

2220019 is a deficient number, since it is larger than the sum of its proper divisors (2981).

2220019 is a wasteful number, since it uses less digits than its factorization.

2220019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2220019 is about 1489.9728185440. The cubic root of 2220019 is about 130.4524471616.

The spelling of 2220019 in words is "two million, two hundred twenty thousand, nineteen".