2201545512 has 96 divisors (see below), whose sum is σ = 6128839080. Its totient is φ = 713502720.

The previous prime is 2201545501. The next prime is 2201545513. The reversal of 2201545512 is 2155451022.

2201545512 is a `hidden beast` number, since 2 + 201 + 5 + 455 + 1 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1794877956 + 406667556 = 42366^2 + 20166^2 .

It is not an unprimeable number, because it can be changed into a prime (2201545513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 993718 + ... + 995930.

Almost surely, 2^2201545512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2201545512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064419540).

2201545512 is an abundant number, since it is smaller than the sum of its proper divisors (3927293568).

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

2201545512 is a wasteful number, since it uses less digits than its factorization.

2201545512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603 (or 2596 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 2201545512 is about 46920.6299190452. The cubic root of 2201545512 is about 1300.8959330899.

Adding to 2201545512 its reverse (2155451022), we get a palindrome (4356996534).

The spelling of 2201545512 in words is "two billion, two hundred one million, five hundred forty-five thousand, five hundred twelve".