221048232 has 64 divisors (see below), whose sum is σ = 562464000. Its totient is φ = 72382464.

The previous prime is 221048231. The next prime is 221048257. The reversal of 221048232 is 232840122.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (221048231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 510288 + ... + 510720.

It is an arithmetic number, because the mean of its divisors is an integer number (8788500).

Almost surely, 2^221048232 is an apocalyptic number.

It is an amenable number.

221048232 is an abundant number, since it is smaller than the sum of its proper divisors (341415768).

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

221048232 is a wasteful number, since it uses less digits than its factorization.

221048232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 766 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 221048232 is about 14867.6908765282. The cubic root of 221048232 is about 604.6383395017.

Adding to 221048232 its reverse (232840122), we get a palindrome (453888354).

The spelling of 221048232 in words is "two hundred twenty-one million, forty-eight thousand, two hundred thirty-two".