21222030113 has 8 divisors (see below), whose sum is σ = 21582345576. Its totient is φ = 20862115200.

The previous prime is 21222030101. The next prime is 21222030157. The reversal of 21222030113 is 31103022212.

It can be written as a sum of positive squares in 4 ways, for example, as 1919929489 + 19302100624 = 43817^2 + 138932^2 .

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 21222030113 - 2¹⁸ = 21221767969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21222030091 and 21222030100.

It is not an unprimeable number, because it can be changed into a prime (21222030163) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7703 + ... + 206163.

It is an arithmetic number, because the mean of its divisors is an integer number (2697793197).

Almost surely, 2^21222030113 is an apocalyptic number.

It is an amenable number.

21222030113 is a deficient number, since it is larger than the sum of its proper divisors (360315463).

21222030113 is a wasteful number, since it uses less digits than its factorization.

21222030113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200275.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21222030113 its reverse (31103022212), we get a palindrome (52325052325).

The spelling of 21222030113 in words is "twenty-one billion, two hundred twenty-two million, thirty thousand, one hundred thirteen".