22111052345 has 4 divisors (see below), whose sum is σ = 26533262820. Its totient is φ = 17688841872.

The previous prime is 22111052303. The next prime is 22111052357. The reversal of 22111052345 is 54325011122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15190809001 + 6920243344 = 123251^2 + 83188^2 .

It is a cyclic number.

It is not a de Polignac number, because 22111052345 - 2¹⁰ = 22111051321 is a prime.

It is an unprimeable number.

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, 2211105230 + ... + 2211105239.

It is an arithmetic number, because the mean of its divisors is an integer number (6633315705).

Almost surely, 2^22111052345 is an apocalyptic number.

It is an amenable number.

22111052345 is a deficient number, since it is larger than the sum of its proper divisors (4422210475).

22111052345 is an equidigital number, since it uses as much as digits as its factorization.

22111052345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422210474.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 22111052345 its reverse (54325011122), we get a palindrome (76436063467).

The spelling of 22111052345 in words is "twenty-two billion, one hundred eleven million, fifty-two thousand, three hundred forty-five".