13222311240 has 64 divisors (see below), whose sum is σ = 39757449600. Its totient is φ = 3517903872.

The previous prime is 13222311233. The next prime is 13222311241. The reversal of 13222311240 is 4211322231.

It is a super-4 number, since 4×13222311240⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (13222311241) 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, 72817 + ... + 178176.

It is an arithmetic number, because the mean of its divisors is an integer number (621210150).

Almost surely, 2^13222311240 is an apocalyptic number.

13222311240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13222311240 is an abundant number, since it is smaller than the sum of its proper divisors (26535138360).

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

13222311240 is a wasteful number, since it uses less digits than its factorization.

13222311240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251446 (or 251442 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13222311240 its reverse (4211322231), we get a palindrome (17433633471).

The spelling of 13222311240 in words is "thirteen billion, two hundred twenty-two million, three hundred eleven thousand, two hundred forty".