22150243500 has 768 divisors, whose sum is σ = 88310476800. Its totient is φ = 4171776000.

The previous prime is 22150243459. The next prime is 22150243543. The reversal of 22150243500 is 534205122.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 56941306 + ... + 56941694.

It is an arithmetic number, because the mean of its divisors is an integer number (114987600).

Almost surely, 2^22150243500 is an apocalyptic number.

22150243500 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 22150243500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44155238400).

22150243500 is an abundant number, since it is smaller than the sum of its proper divisors (66160233300).

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

22150243500 is a wasteful number, since it uses less digits than its factorization.

22150243500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475 (or 463 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 22150243500 its reverse (534205122), we get a palindrome (22684448622).

The spelling of 22150243500 in words is "twenty-two billion, one hundred fifty million, two hundred forty-three thousand, five hundred".