221351030 has 8 divisors (see below), whose sum is σ = 398431872. Its totient is φ = 88540408.

The previous prime is 221351023. The next prime is 221351041. The reversal of 221351030 is 30153122.

221351030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11067542 + ... + 11067561.

It is an arithmetic number, because the mean of its divisors is an integer number (49803984).

Almost surely, 2^221351030 is an apocalyptic number.

221351030 is a deficient number, since it is larger than the sum of its proper divisors (177080842).

221351030 is a wasteful number, since it uses less digits than its factorization.

221351030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22135110.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 221351030 is about 14877.8704793394. The cubic root of 221351030 is about 604.9142969920.

The spelling of 221351030 in words is "two hundred twenty-one million, three hundred fifty-one thousand, thirty".