22131002213 has 4 divisors (see below), whose sum is σ = 22138816908. Its totient is φ = 22123187520.

The previous prime is 22131002183. The next prime is 22131002219. The reversal of 22131002213 is 31220013122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31220013122 = 2 ⋅15610006561.

It can be written as a sum of positive squares in 2 ways, for example, as 12214228324 + 9916773889 = 110518^2 + 99583^2 .

It is a cyclic number.

It is not a de Polignac number, because 22131002213 - 2¹⁶ = 22130936677 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22131002191 and 22131002200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22131002219) 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 3 ways as a sum of consecutive naturals, for example, 3903098 + ... + 3908763.

It is an arithmetic number, because the mean of its divisors is an integer number (5534704227).

Almost surely, 2^22131002213 is an apocalyptic number.

It is an amenable number.

22131002213 is a deficient number, since it is larger than the sum of its proper divisors (7814695).

22131002213 is an equidigital number, since it uses as much as digits as its factorization.

22131002213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7814694.

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

Adding to 22131002213 its reverse (31220013122), we get a palindrome (53351015335).

The spelling of 22131002213 in words is "twenty-two billion, one hundred thirty-one million, two thousand, two hundred thirteen".