221413630 has 8 divisors (see below), whose sum is σ = 398544552. Its totient is φ = 88565448.

The previous prime is 221413613. The next prime is 221413639. The reversal of 221413630 is 36314122.

221413630 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 not an unprimeable number, because it can be changed into a prime (221413639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11070672 + ... + 11070691.

It is an arithmetic number, because the mean of its divisors is an integer number (49818069).

Almost surely, 2^221413630 is an apocalyptic number.

221413630 is a deficient number, since it is larger than the sum of its proper divisors (177130922).

221413630 is a wasteful number, since it uses less digits than its factorization.

221413630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22141370.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 221413630 is about 14879.9741263216. The cubic root of 221413630 is about 604.9713166284.

Adding to 221413630 its reverse (36314122), we get a palindrome (257727752).

The spelling of 221413630 in words is "two hundred twenty-one million, four hundred thirteen thousand, six hundred thirty".