22205245040 has 40 divisors (see below), whose sum is σ = 56320578288. Its totient is φ = 8074634240.

The previous prime is 22205245001. The next prime is 22205245043. The reversal of 22205245040 is 4054250222.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22205245043) 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, 12615737 + ... + 12617496.

Almost surely, 2^22205245040 is an apocalyptic number.

22205245040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22205245040 is an abundant number, since it is smaller than the sum of its proper divisors (34115333248).

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

22205245040 is a wasteful number, since it uses less digits than its factorization.

22205245040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25233257 (or 25233251 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

Adding to 22205245040 its reverse (4054250222), we get a palindrome (26259495262).

The spelling of 22205245040 in words is "twenty-two billion, two hundred five million, two hundred forty-five thousand, forty".