22129309200 has 60 divisors (see below), whose sum is σ = 70887557648. Its totient is φ = 5901148800.

The previous prime is 22129309193. The next prime is 22129309229. The reversal of 22129309200 is 290392122.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9219346 + ... + 9221745.

Almost surely, 2^22129309200 is an apocalyptic number.

22129309200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22129309200 is an abundant number, since it is smaller than the sum of its proper divisors (48758248448).

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

22129309200 is a wasteful number, since it uses less digits than its factorization.

22129309200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18441112 (or 18441101 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The spelling of 22129309200 in words is "twenty-two billion, one hundred twenty-nine million, three hundred nine thousand, two hundred".