22221003331 has 16 divisors (see below), whose sum is σ = 24167928960. Its totient is φ = 20347960320.

The previous prime is 22221003313. The next prime is 22221003359. The reversal of 22221003331 is 13330012222.

It is a cyclic number.

It is not a de Polignac number, because 22221003331 - 2³³ = 13631068739 is a prime.

It is a super-2 number, since 2×22221003331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22221003299 and 22221003308.

It is not an unprimeable number, because it can be changed into a prime (22221003361) 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 15 ways as a sum of consecutive naturals, for example, 212365 + ... + 299233.

It is an arithmetic number, because the mean of its divisors is an integer number (1510495560).

Almost surely, 2^22221003331 is an apocalyptic number.

22221003331 is a deficient number, since it is larger than the sum of its proper divisors (1946925629).

22221003331 is a wasteful number, since it uses less digits than its factorization.

22221003331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87294.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22221003331 its reverse (13330012222), we get a palindrome (35551015553).

The spelling of 22221003331 in words is "twenty-two billion, two hundred twenty-one million, three thousand, three hundred thirty-one".