221023201 has 8 divisors (see below), whose sum is σ = 252830720. Its totient is φ = 189273888.

The previous prime is 221023183. The next prime is 221023217. The reversal of 221023201 is 102320122.

221023201 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 cyclic number.

It is not a de Polignac number, because 221023201 - 2¹⁵ = 220990433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221023241) 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, 6081 + ... + 21886.

It is an arithmetic number, because the mean of its divisors is an integer number (31603840).

Almost surely, 2^221023201 is an apocalyptic number.

It is an amenable number.

221023201 is a deficient number, since it is larger than the sum of its proper divisors (31807519).

221023201 is a wasteful number, since it uses less digits than its factorization.

221023201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29103.

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

The square root of 221023201 is about 14866.8490609140. The cubic root of 221023201 is about 604.6155160159.

Adding to 221023201 its reverse (102320122), we get a palindrome (323343323).

The spelling of 221023201 in words is "two hundred twenty-one million, twenty-three thousand, two hundred one".