22144099999 has 4 divisors (see below), whose sum is σ = 25307542864. Its totient is φ = 18980657136.

The previous prime is 22144099981. The next prime is 22144100009. The reversal of 22144099999 is 99999044122.

It is a happy number.

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

It is not a de Polignac number, because 22144099999 - 2²¹ = 22142002847 is a prime.

It is a super-2 number, since 2×22144099999² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22144099909) 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, 1581721422 + ... + 1581721435.

It is an arithmetic number, because the mean of its divisors is an integer number (6326885716).

Almost surely, 2^22144099999 is an apocalyptic number.

22144099999 is a deficient number, since it is larger than the sum of its proper divisors (3163442865).

22144099999 is an equidigital number, since it uses as much as digits as its factorization.

22144099999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163442864.

The product of its (nonzero) digits is 3779136, while the sum is 58.

The spelling of 22144099999 in words is "twenty-two billion, one hundred forty-four million, ninety-nine thousand, nine hundred ninety-nine".