20022319019 has 4 divisors (see below), whose sum is σ = 20145155496. Its totient is φ = 19899482544.

The previous prime is 20022318991. The next prime is 20022319021. The reversal of 20022319019 is 91091322002.

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 20022319019 - 2⁸ = 20022318763 is a prime.

It is a super-2 number, since 2×20022319019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20022318982 and 20022319000.

It is not an unprimeable number, because it can be changed into a prime (20022319069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61417994 + ... + 61418319.

It is an arithmetic number, because the mean of its divisors is an integer number (5036288874).

Almost surely, 2^20022319019 is an apocalyptic number.

20022319019 is a deficient number, since it is larger than the sum of its proper divisors (122836477).

20022319019 is a wasteful number, since it uses less digits than its factorization.

20022319019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122836476.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 20022319019 in words is "twenty billion, twenty-two million, three hundred nineteen thousand, nineteen".