22272865900 has 72 divisors (see below), whose sum is σ = 51023210000. Its totient is φ = 8415809280.

The previous prime is 22272865897. The next prime is 22272865921. The reversal of 22272865900 is 956827222.

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 23 ways as a sum of consecutive naturals, for example, 646306 + ... + 679894.

Almost surely, 2^22272865900 is an apocalyptic number.

22272865900 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 22272865900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25511605000).

22272865900 is an abundant number, since it is smaller than the sum of its proper divisors (28750344100).

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

22272865900 is a wasteful number, since it uses less digits than its factorization.

22272865900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33971 (or 33964 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 22272865900 in words is "twenty-two billion, two hundred seventy-two million, eight hundred sixty-five thousand, nine hundred".