221414532 has 12 divisors (see below), whose sum is σ = 516633936. Its totient is φ = 73804840.

The previous prime is 221414527. The next prime is 221414539. The reversal of 221414532 is 235414122.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (221414539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9225594 + ... + 9225617.

It is an arithmetic number, because the mean of its divisors is an integer number (43052828).

Almost surely, 2^221414532 is an apocalyptic number.

It is an amenable number.

221414532 is an abundant number, since it is smaller than the sum of its proper divisors (295219404).

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

221414532 is a wasteful number, since it uses less digits than its factorization.

221414532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18451218 (or 18451216 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 221414532 is about 14880.0044354832. The cubic root of 221414532 is about 604.9721381427.

Adding to 221414532 its reverse (235414122), we get a palindrome (456828654).

The spelling of 221414532 in words is "two hundred twenty-one million, four hundred fourteen thousand, five hundred thirty-two".