22112121219 has 4 divisors (see below), whose sum is σ = 29482828296. Its totient is φ = 14741414144.

The previous prime is 22112121203. The next prime is 22112121233. The reversal of 22112121219 is 91212121122.

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 22112121219 - 2⁴ = 22112121203 is a prime.

It is a super-2 number, since 2×22112121219² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22112121259) 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, 3685353534 + ... + 3685353539.

It is an arithmetic number, because the mean of its divisors is an integer number (7370707074).

Almost surely, 2^22112121219 is an apocalyptic number.

22112121219 is a deficient number, since it is larger than the sum of its proper divisors (7370707077).

22112121219 is an equidigital number, since it uses as much as digits as its factorization.

22112121219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7370707076.

The product of its digits is 288, while the sum is 24.

The spelling of 22112121219 in words is "twenty-two billion, one hundred twelve million, one hundred twenty-one thousand, two hundred nineteen".