221010413 has 8 divisors (see below), whose sum is σ = 250538400. Its totient is φ = 193272048.

The previous prime is 221010397. The next prime is 221010431. The reversal of 221010413 is 314010122.

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

It is a cyclic number.

It is not a de Polignac number, because 221010413 - 2⁴ = 221010397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447143 + ... + 447636.

It is an arithmetic number, because the mean of its divisors is an integer number (31317300).

Almost surely, 2^221010413 is an apocalyptic number.

It is an amenable number.

221010413 is a deficient number, since it is larger than the sum of its proper divisors (29527987).

221010413 is a wasteful number, since it uses less digits than its factorization.

221010413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894811.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 221010413 is about 14866.4189702833. The cubic root of 221010413 is about 604.6038551400.

Adding to 221010413 its reverse (314010122), we get a palindrome (535020535).

The spelling of 221010413 in words is "two hundred twenty-one million, ten thousand, four hundred thirteen".