22221844446 has 32 divisors (see below), whose sum is σ = 45695817216. Its totient is φ = 7199928000.

The previous prime is 22221844441. The next prime is 22221844499. The reversal of 22221844446 is 64444812222.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221844441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100000 + ... + 233331.

It is an arithmetic number, because the mean of its divisors is an integer number (1427994288).

Almost surely, 2^22221844446 is an apocalyptic number.

22221844446 is an abundant number, since it is smaller than the sum of its proper divisors (23473972770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22221844446 is a wasteful number, since it uses less digits than its factorization.

22221844446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333648.

The product of its digits is 196608, while the sum is 39.

The spelling of 22221844446 in words is "twenty-two billion, two hundred twenty-one million, eight hundred forty-four thousand, four hundred forty-six".