22109741 has 4 divisors (see below), whose sum is σ = 23410332. Its totient is φ = 20809152.

The previous prime is 22109653. The next prime is 22109753. The reversal of 22109741 is 14790122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14790122 = 2 ⋅7395061.

It can be written as a sum of positive squares in 2 ways, for example, as 8940100 + 13169641 = 2990^2 + 3629^2 .

It is a cyclic number.

It is not a de Polignac number, because 22109741 - 2¹⁸ = 21847597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22109741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22109771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 650270 + ... + 650303.

It is an arithmetic number, because the mean of its divisors is an integer number (5852583).

Almost surely, 2^22109741 is an apocalyptic number.

It is an amenable number.

22109741 is a deficient number, since it is larger than the sum of its proper divisors (1300591).

22109741 is a wasteful number, since it uses less digits than its factorization.

22109741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300590.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 22109741 is about 4702.0996373960. The cubic root of 22109741 is about 280.6690674889.

Adding to 22109741 its reverse (14790122), we get a palindrome (36899863).

The spelling of 22109741 in words is "twenty-two million, one hundred nine thousand, seven hundred forty-one".