13222204240 has 80 divisors (see below), whose sum is σ = 37199976192. Its totient is φ = 4266657792.

The previous prime is 13222204211. The next prime is 13222204243. The reversal of 13222204240 is 4240222231.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222204243) 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, 684924 + ... + 703963.

Almost surely, 2^13222204240 is an apocalyptic number.

13222204240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222204240 is an abundant number, since it is smaller than the sum of its proper divisors (23977771952).

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

13222204240 is a wasteful number, since it uses less digits than its factorization.

13222204240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388924 (or 1388918 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 13222204240 its reverse (4240222231), we get a palindrome (17462426471).

The spelling of 13222204240 in words is "thirteen billion, two hundred twenty-two million, two hundred four thousand, two hundred forty".