2150521110 has 128 divisors (see below), whose sum is σ = 5932776960. Its totient is φ = 554007168.

The previous prime is 2150521081. The next prime is 2150521111. The reversal of 2150521110 is 111250512.

2150521110 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150521111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 957649 + ... + 959891.

It is an arithmetic number, because the mean of its divisors is an integer number (46349820).

Almost surely, 2^2150521110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2150521110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2966388480).

2150521110 is an abundant number, since it is smaller than the sum of its proper divisors (3782255850).

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

2150521110 is a wasteful number, since it uses less digits than its factorization.

2150521110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2373 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 2150521110 is about 46373.7114106689. The cubic root of 2150521110 is about 1290.7671478061.

Adding to 2150521110 its reverse (111250512), we get a palindrome (2261771622).

The spelling of 2150521110 in words is "two billion, one hundred fifty million, five hundred twenty-one thousand, one hundred ten".