22222224444446 has 24 divisors (see below), whose sum is σ = 37994398080120. Its totient is φ = 9716600159136.

The previous prime is 22222224444443. The next prime is 22222224444461. The reversal of 22222224444446 is 64444442222222.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 22222224444397 and 22222224444406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222224444443) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1730157425 + ... + 1730170268.

It is an arithmetic number, because the mean of its divisors is an integer number (1583099920005).

Almost surely, 2^{22222224444446} is an apocalyptic number.

22222224444446 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22222224444446 is a deficient number, since it is larger than the sum of its proper divisors (15772173635674).

22222224444446 is a wasteful number, since it uses less digits than its factorization.

22222224444446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460327740 (or 3460327727 counting only the distinct ones).

The product of its digits is 3145728, while the sum is 44.

Adding to 22222224444446 its reverse (64444442222222), we get a palindrome (86666666666668).

The spelling of 22222224444446 in words is "twenty-two trillion, two hundred twenty-two billion, two hundred twenty-four million, four hundred forty-four thousand, four hundred forty-six".