22221013219 has 4 divisors (see below), whose sum is σ = 22221380160. Its totient is φ = 22220646280.

The previous prime is 22221013211. The next prime is 22221013229. The reversal of 22221013219 is 91231012222.

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 22221013219 - 2³ = 22221013211 is a prime.

It is a super-2 number, since 2×22221013219² (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 = 22221013193 and 22221013202.

It is not an unprimeable number, because it can be changed into a prime (22221013211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68704 + ... + 221725.

It is an arithmetic number, because the mean of its divisors is an integer number (5555345040).

Almost surely, 2^22221013219 is an apocalyptic number.

22221013219 is a deficient number, since it is larger than the sum of its proper divisors (366941).

22221013219 is an equidigital number, since it uses as much as digits as its factorization.

22221013219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366940.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 22221013219 in words is "twenty-two billion, two hundred twenty-one million, thirteen thousand, two hundred nineteen".