22048384621 has 4 divisors (see below), whose sum is σ = 22464391932. Its totient is φ = 21632377312.

The previous prime is 22048384609. The next prime is 22048384627. The reversal of 22048384621 is 12648384022.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20060473225 + 1987911396 = 141635^2 + 44586^2 .

It is a cyclic number.

It is not a de Polignac number, because 22048384621 - 2⁹ = 22048384109 is a prime.

It is a super-2 number, since 2×22048384621² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22048384627) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208003576 + ... + 208003681.

It is an arithmetic number, because the mean of its divisors is an integer number (5616097983).

Almost surely, 2^22048384621 is an apocalyptic number.

It is an amenable number.

22048384621 is a deficient number, since it is larger than the sum of its proper divisors (416007311).

22048384621 is an equidigital number, since it uses as much as digits as its factorization.

22048384621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416007310.

The product of its (nonzero) digits is 147456, while the sum is 40.

The spelling of 22048384621 in words is "twenty-two billion, forty-eight million, three hundred eighty-four thousand, six hundred twenty-one".