22194395000 has 80 divisors (see below), whose sum is σ = 52139716200. Its totient is φ = 8854160000.

The previous prime is 22194394993. The next prime is 22194395021. The reversal of 22194395000 is 59349122.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1939295 + ... + 1950705.

Almost surely, 2^22194395000 is an apocalyptic number.

22194395000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22194395000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26069858100).

22194395000 is an abundant number, since it is smaller than the sum of its proper divisors (29945321200).

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

22194395000 is a wasteful number, since it uses less digits than its factorization.

22194395000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11826 (or 11807 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The spelling of 22194395000 in words is "twenty-two billion, one hundred ninety-four million, three hundred ninety-five thousand".