22005155200 has 144 divisors (see below), whose sum is σ = 63235098900. Its totient is φ = 7544570880.

The previous prime is 22005155167. The next prime is 22005155201. The reversal of 22005155200 is 255150022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22005155201) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 86631 + ... + 226969.

Almost surely, 2^22005155200 is an apocalyptic number.

22005155200 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 22005155200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31617549450).

22005155200 is an abundant number, since it is smaller than the sum of its proper divisors (41229943700).

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

22005155200 is a wasteful number, since it uses less digits than its factorization.

22005155200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140377 (or 140353 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The spelling of 22005155200 in words is "twenty-two billion, five million, one hundred fifty-five thousand, two hundred".