214221500 has 48 divisors (see below), whose sum is σ = 469306656. Its totient is φ = 85424000.

The previous prime is 214221481. The next prime is 214221503. The reversal of 214221500 is 5122412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214221503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281120 + ... + 281880.

It is an arithmetic number, because the mean of its divisors is an integer number (9777222).

Almost surely, 2^214221500 is an apocalyptic number.

214221500 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 214221500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (234653328).

214221500 is an abundant number, since it is smaller than the sum of its proper divisors (255085156).

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

214221500 is a wasteful number, since it uses less digits than its factorization.

214221500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1331 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 214221500 is about 14636.3075944720. The cubic root of 214221500 is about 598.3487002586.

Adding to 214221500 its reverse (5122412), we get a palindrome (219343912).

It can be divided in two parts, 21422 and 1500, that added together give a palindrome (22922).

The spelling of 214221500 in words is "two hundred fourteen million, two hundred twenty-one thousand, five hundred".