221300246 has 4 divisors (see below), whose sum is σ = 331950372. Its totient is φ = 110650122.

The previous prime is 221300243. The next prime is 221300249. The reversal of 221300246 is 642003122.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (221300243) and next prime (221300249).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55325060 + ... + 55325063.

It is an arithmetic number, because the mean of its divisors is an integer number (82987593).

Almost surely, 2^221300246 is an apocalyptic number.

221300246 is a deficient number, since it is larger than the sum of its proper divisors (110650126).

221300246 is a wasteful number, since it uses less digits than its factorization.

221300246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110650125.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 221300246 is about 14876.1636855743. The cubic root of 221300246 is about 604.8680321409.

Adding to 221300246 its reverse (642003122), we get a palindrome (863303368).

The spelling of 221300246 in words is "two hundred twenty-one million, three hundred thousand, two hundred forty-six".