13222639850 has 24 divisors (see below), whose sum is σ = 28107555168. Its totient is φ = 4533476400.

The previous prime is 13222639849. The next prime is 13222639853. The reversal of 13222639850 is 5893622231.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13222639798 and 13222639807.

It is not an unprimeable number, because it can be changed into a prime (13222639853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18889136 + ... + 18889835.

It is an arithmetic number, because the mean of its divisors is an integer number (1171148132).

Almost surely, 2^13222639850 is an apocalyptic number.

13222639850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13222639850 is an abundant number, since it is smaller than the sum of its proper divisors (14884915318).

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

13222639850 is a wasteful number, since it uses less digits than its factorization.

13222639850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37778990 (or 37778985 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 13222639850 in words is "thirteen billion, two hundred twenty-two million, six hundred thirty-nine thousand, eight hundred fifty".