221132652 has 48 divisors (see below), whose sum is σ = 556991232. Its totient is φ = 67878720.

The previous prime is 221132647. The next prime is 221132671. The reversal of 221132652 is 256231122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75153 + ... + 78039.

It is an arithmetic number, because the mean of its divisors is an integer number (11603984).

Almost surely, 2^221132652 is an apocalyptic number.

It is an amenable number.

221132652 is an abundant number, since it is smaller than the sum of its proper divisors (335858580).

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

221132652 is a wasteful number, since it uses less digits than its factorization.

221132652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398 (or 3396 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 221132652 is about 14870.5296475949. The cubic root of 221132652 is about 604.7153016977.

Adding to 221132652 its reverse (256231122), we get a palindrome (477363774).

The spelling of 221132652 in words is "two hundred twenty-one million, one hundred thirty-two thousand, six hundred fifty-two".