221152002 has 8 divisors (see below), whose sum is σ = 442304016. Its totient is φ = 73717332.

The previous prime is 221151977. The next prime is 221152013. The reversal of 221152002 is 200251122.

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

221152002 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18429328 + ... + 18429339.

It is an arithmetic number, because the mean of its divisors is an integer number (55288002).

Almost surely, 2^221152002 is an apocalyptic number.

221152002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

221152002 is a wasteful number, since it uses less digits than its factorization.

221152002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36858672.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 221152002 is about 14871.1802490589. The cubic root of 221152002 is about 604.7329395268.

The spelling of 221152002 in words is "two hundred twenty-one million, one hundred fifty-two thousand, two".