201522530000 has 200 divisors, whose sum is σ = 533616638016. Its totient is φ = 73094400000.

The previous prime is 201522529997. The next prime is 201522530029. The reversal of 201522530000 is 35225102.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×201522530000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 47627885 + ... + 47632115.

Almost surely, 2^201522530000 is an apocalyptic number.

201522530000 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 201522530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266808319008).

201522530000 is an abundant number, since it is smaller than the sum of its proper divisors (332094108016).

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

201522530000 is a wasteful number, since it uses less digits than its factorization.

201522530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703 (or 4682 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 201522530000 its reverse (35225102), we get a palindrome (201557755102).

The spelling of 201522530000 in words is "two hundred one billion, five hundred twenty-two million, five hundred thirty thousand".