22194229152 has 96 divisors (see below), whose sum is σ = 59844331008. Its totient is φ = 7198200576.

The previous prime is 22194229139. The next prime is 22194229217. The reversal of 22194229152 is 25192249122.

It is a tau number, because it is divible by the number of its divisors (96).

It is a self number, because there is not a number n which added to its sum of digits gives 22194229152.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1075443 + ... + 1095885.

It is an arithmetic number, because the mean of its divisors is an integer number (623378448).

Almost surely, 2^22194229152 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 22194229152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29922165504).

22194229152 is an abundant number, since it is smaller than the sum of its proper divisors (37650101856).

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

22194229152 is a wasteful number, since it uses less digits than its factorization.

22194229152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20762 (or 20754 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The spelling of 22194229152 in words is "twenty-two billion, one hundred ninety-four million, two hundred twenty-nine thousand, one hundred fifty-two".