2201501000 has 32 divisors (see below), whose sum is σ = 5151514680. Its totient is φ = 880600000.

The previous prime is 2201500997. The next prime is 2201501017. The reversal of 2201501000 is 1051022.

It can be written as a sum of positive squares in 4 ways, for example, as 1033365316 + 1168135684 = 32146^2 + 34178^2 .

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 7 ways as a sum of consecutive naturals, for example, 1099751 + ... + 1101750.

Almost surely, 2^2201501000 is an apocalyptic number.

2201501000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201501000 is an abundant number, since it is smaller than the sum of its proper divisors (2950013680).

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

2201501000 is a wasteful number, since it uses less digits than its factorization.

2201501000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2201522 (or 2201508 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 2201501000 is about 46920.1555837148. The cubic root of 2201501000 is about 1300.8871656325.

Adding to 2201501000 its reverse (1051022), we get a palindrome (2202552022).

The spelling of 2201501000 in words is "two billion, two hundred one million, five hundred one thousand".