22111323213 has 8 divisors (see below), whose sum is σ = 33693444928. Its totient is φ = 12635041824.

The previous prime is 22111323203. The next prime is 22111323253. The reversal of 22111323213 is 31232311122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22111323213 - 2¹³ = 22111315021 is a prime.

It is a super-2 number, since 2×22111323213² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1052920153 = 22111323213 / (2 + 2 + 1 + 1 + 1 + 3 + 2 + 3 + 2 + 1 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22111323213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111323203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526460056 + ... + 526460097.

It is an arithmetic number, because the mean of its divisors is an integer number (4211680616).

Almost surely, 2^22111323213 is an apocalyptic number.

It is an amenable number.

22111323213 is a deficient number, since it is larger than the sum of its proper divisors (11582121715).

22111323213 is a wasteful number, since it uses less digits than its factorization.

22111323213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1052920163.

The product of its digits is 432, while the sum is 21.

Adding to 22111323213 its reverse (31232311122), we get a palindrome (53343634335).

The spelling of 22111323213 in words is "twenty-two billion, one hundred eleven million, three hundred twenty-three thousand, two hundred thirteen".