221140030 has 8 divisors (see below), whose sum is σ = 398052072. Its totient is φ = 88456008.

The previous prime is 221139973. The next prime is 221140043. The reversal of 221140030 is 30041122.

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, 11056992 + ... + 11057011.

It is an arithmetic number, because the mean of its divisors is an integer number (49756509).

Almost surely, 2^221140030 is an apocalyptic number.

221140030 is a deficient number, since it is larger than the sum of its proper divisors (176912042).

221140030 is a wasteful number, since it uses less digits than its factorization.

221140030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22114010.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 221140030 is about 14870.7777200791. Note that the first 4 decimals coincide. The cubic root of 221140030 is about 604.7220269820.

Adding to 221140030 its reverse (30041122), we get a palindrome (251181152).

The spelling of 221140030 in words is "two hundred twenty-one million, one hundred forty thousand, thirty".