201522150500 has 96 divisors (see below), whose sum is σ = 480703362048. Its totient is φ = 73194144000.

The previous prime is 201522150493. The next prime is 201522150503. The reversal of 201522150500 is 5051225102.

It is a super-2 number, since 2×201522150500² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201522150503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4725272 + ... + 4767728.

It is an arithmetic number, because the mean of its divisors is an integer number (5007326688).

Almost surely, 2^201522150500 is an apocalyptic number.

201522150500 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 201522150500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240351681024).

201522150500 is an abundant number, since it is smaller than the sum of its proper divisors (279181211548).

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

201522150500 is a wasteful number, since it uses less digits than its factorization.

201522150500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43350 (or 43338 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

Adding to 201522150500 its reverse (5051225102), we get a palindrome (206573375602).

The spelling of 201522150500 in words is "two hundred one billion, five hundred twenty-two million, one hundred fifty thousand, five hundred".