2201155000 has 160 divisors (see below), whose sum is σ = 5812139520. Its totient is φ = 774000000.

The previous prime is 2201154979. The next prime is 2201155001. The reversal of 2201155000 is 5511022.

2201155000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201155001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1704355 + ... + 1705645.

It is an arithmetic number, because the mean of its divisors is an integer number (36325872).

Almost surely, 2^2201155000 is an apocalyptic number.

2201155000 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 2201155000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2906069760).

2201155000 is an abundant number, since it is smaller than the sum of its proper divisors (3610984520).

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

2201155000 is a wasteful number, since it uses less digits than its factorization.

2201155000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 2201155000 is about 46916.4683240331. The cubic root of 2201155000 is about 1300.8190105356.

Adding to 2201155000 its reverse (5511022), we get a palindrome (2206666022).

The spelling of 2201155000 in words is "two billion, two hundred one million, one hundred fifty-five thousand".