22243500451 has 4 divisors (see below), whose sum is σ = 23551941672. Its totient is φ = 20935059232.

The previous prime is 22243500439. The next prime is 22243500527. The reversal of 22243500451 is 15400534222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15400534222 = 2 ⋅7700267111.

It is a cyclic number.

It is not a de Polignac number, because 22243500451 - 2²¹ = 22241403299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22243500151) 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, 654220585 + ... + 654220618.

It is an arithmetic number, because the mean of its divisors is an integer number (5887985418).

Almost surely, 2^22243500451 is an apocalyptic number.

22243500451 is a deficient number, since it is larger than the sum of its proper divisors (1308441221).

22243500451 is a wasteful number, since it uses less digits than its factorization.

22243500451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308441220.

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 22243500451 in words is "twenty-two billion, two hundred forty-three million, five hundred thousand, four hundred fifty-one".