22131103331 has 4 divisors (see below), whose sum is σ = 22132622232. Its totient is φ = 22129584432.

The previous prime is 22131103321. The next prime is 22131103339. The reversal of 22131103331 is 13330113122.

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

It is a cyclic number.

It is not a de Polignac number, because 22131103331 - 2¹⁰ = 22131102307 is a prime.

It is a super-2 number, since 2×22131103331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131103339) 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 3 ways as a sum of consecutive naturals, for example, 737381 + ... + 766806.

It is an arithmetic number, because the mean of its divisors is an integer number (5533155558).

Almost surely, 2^22131103331 is an apocalyptic number.

22131103331 is a deficient number, since it is larger than the sum of its proper divisors (1518901).

22131103331 is a wasteful number, since it uses less digits than its factorization.

22131103331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518900.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 22131103331 its reverse (13330113122), we get a palindrome (35461216453).

The spelling of 22131103331 in words is "twenty-two billion, one hundred thirty-one million, one hundred three thousand, three hundred thirty-one".