22208435204446 has 16 divisors (see below), whose sum is σ = 35277115169376. Its totient is φ = 10449578094336.

The previous prime is 22208435204441. The next prime is 22208435204477. The reversal of 22208435204446 is 64440253480222.

It is a junction number, because it is equal to n+sod(n) for n = 22208435204396 and 22208435204405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22208435204441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45071271 + ... + 45561346.

It is an arithmetic number, because the mean of its divisors is an integer number (2204819698086).

Almost surely, 2^{22208435204446} is an apocalyptic number.

22208435204446 is a deficient number, since it is larger than the sum of its proper divisors (13068679964930).

22208435204446 is a wasteful number, since it uses less digits than its factorization.

22208435204446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90639843.

The product of its (nonzero) digits is 2949120, while the sum is 46.

Adding to 22208435204446 its reverse (64440253480222), we get a palindrome (86648688684668).

The spelling of 22208435204446 in words is "twenty-two trillion, two hundred eight billion, four hundred thirty-five million, two hundred four thousand, four hundred forty-six".