21114224233 has 8 divisors (see below), whose sum is σ = 21688654280. Its totient is φ = 20539992960.

The previous prime is 21114224189. The next prime is 21114224237. The reversal of 21114224233 is 33242241112.

It can be written as a sum of positive squares in 4 ways, for example, as 7629673104 + 13484551129 = 87348^2 + 116123^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 21114224233 - 2¹³ = 21114216041 is a prime.

It is a super-2 number, since 2×21114224233² (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 = 21114224198 and 21114224207.

It is not an unprimeable number, because it can be changed into a prime (21114224237) 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, 179863 + ... + 273091.

It is an arithmetic number, because the mean of its divisors is an integer number (2711081785).

Almost surely, 2^21114224233 is an apocalyptic number.

It is an amenable number.

21114224233 is a deficient number, since it is larger than the sum of its proper divisors (574430047).

21114224233 is an equidigital number, since it uses as much as digits as its factorization.

21114224233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99387.

The product of its digits is 2304, while the sum is 25.

Adding to 21114224233 its reverse (33242241112), we get a palindrome (54356465345).

The spelling of 21114224233 in words is "twenty-one billion, one hundred fourteen million, two hundred twenty-four thousand, two hundred thirty-three".