221301230 has 16 divisors (see below), whose sum is σ = 399389184. Its totient is φ = 88287840.

The previous prime is 221301209. The next prime is 221301251. The reversal of 221301230 is 32103122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (221301209) and next prime (221301251).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25061 + ... + 32720.

It is an arithmetic number, because the mean of its divisors is an integer number (24961824).

Almost surely, 2^221301230 is an apocalyptic number.

221301230 is a deficient number, since it is larger than the sum of its proper divisors (178087954).

221301230 is a wasteful number, since it uses less digits than its factorization.

221301230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58171.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 221301230 is about 14876.1967585805. The cubic root of 221301230 is about 604.8689286443.

Adding to 221301230 its reverse (32103122), we get a palindrome (253404352).

The spelling of 221301230 in words is "two hundred twenty-one million, three hundred one thousand, two hundred thirty".