221232002 has 8 divisors (see below), whose sum is σ = 332167500. Its totient is φ = 110509504.

The previous prime is 221232001. The next prime is 221232031. The reversal of 221232002 is 200232122.

It can be written as a sum of positive squares in 2 ways, for example, as 213773641 + 7458361 = 14621^2 + 2731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (221232001) 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, 50627 + ... + 54822.

Almost surely, 2^221232002 is an apocalyptic number.

221232002 is a deficient number, since it is larger than the sum of its proper divisors (110935498).

221232002 is a wasteful number, since it uses less digits than its factorization.

221232002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106500.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 221232002 is about 14873.8697721877. The cubic root of 221232002 is about 604.8058498665.

Adding to 221232002 its reverse (200232122), we get a palindrome (421464124).

The spelling of 221232002 in words is "two hundred twenty-one million, two hundred thirty-two thousand, two".