22138606248 has 96 divisors (see below), whose sum is σ = 60894741600. Its totient is φ = 6702129280.

The previous prime is 22138606247. The next prime is 22138606249. The reversal of 22138606248 is 84260683122.

It is an interprime number because it is at equal distance from previous prime (22138606247) and next prime (22138606249).

It is not an unprimeable number, because it can be changed into a prime (22138606247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3565915 + ... + 3572117.

It is an arithmetic number, because the mean of its divisors is an integer number (634320225).

Almost surely, 2^22138606248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22138606248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30447370800).

22138606248 is an abundant number, since it is smaller than the sum of its proper divisors (38756135352).

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

22138606248 is a wasteful number, since it uses less digits than its factorization.

22138606248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463 (or 7448 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 22138606248 in words is "twenty-two billion, one hundred thirty-eight million, six hundred six thousand, two hundred forty-eight".