22221303424445 has 4 divisors (see below), whose sum is σ = 26665564109340. Its totient is φ = 17777042739552.

The previous prime is 22221303424249. The next prime is 22221303424457. The reversal of 22221303424445 is 54442430312222.

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 16910739879289 + 5310563545156 = 4112267^2 + 2304466^2 .

It is a cyclic number.

It is not a de Polignac number, because 22221303424445 - 2⁸ = 22221303424189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22221303424399 and 22221303424408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222130342440 + ... + 2222130342449.

It is an arithmetic number, because the mean of its divisors is an integer number (6666391027335).

Almost surely, 2^{22221303424445} is an apocalyptic number.

It is an amenable number.

22221303424445 is a deficient number, since it is larger than the sum of its proper divisors (4444260684895).

22221303424445 is an equidigital number, since it uses as much as digits as its factorization.

22221303424445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4444260684894.

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 22221303424445 its reverse (54442430312222), we get a palindrome (76663733736667).

The spelling of 22221303424445 in words is "twenty-two trillion, two hundred twenty-one billion, three hundred three million, four hundred twenty-four thousand, four hundred forty-five".