22201443440 has 40 divisors (see below), whose sum is σ = 56310936048. Its totient is φ = 8073251840.

The previous prime is 22201443431. The next prime is 22201443479. The reversal of 22201443440 is 4434410222.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12613577 + ... + 12615336.

Almost surely, 2^22201443440 is an apocalyptic number.

22201443440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201443440 is an abundant number, since it is smaller than the sum of its proper divisors (34109492608).

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

22201443440 is a wasteful number, since it uses less digits than its factorization.

22201443440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25228937 (or 25228931 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22201443440 its reverse (4434410222), we get a palindrome (26635853662).

The spelling of 22201443440 in words is "twenty-two billion, two hundred one million, four hundred forty-three thousand, four hundred forty".