221412201 has 8 divisors (see below), whose sum is σ = 296022144. Its totient is φ = 147205200.

The previous prime is 221412197. The next prime is 221412223. The reversal of 221412201 is 102214122.

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

It is not a de Polignac number, because 221412201 - 2² = 221412197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221412241) 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, 99450 + ... + 101651.

It is an arithmetic number, because the mean of its divisors is an integer number (37002768).

Almost surely, 2^221412201 is an apocalyptic number.

It is an amenable number.

221412201 is a deficient number, since it is larger than the sum of its proper divisors (74609943).

221412201 is a wasteful number, since it uses less digits than its factorization.

221412201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201471.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 221412201 is about 14879.9261086875. The cubic root of 221412201 is about 604.9700151339.

Adding to 221412201 its reverse (102214122), we get a palindrome (323626323).

It can be divided in two parts, 22141 and 2201, that added together give a palindrome (24342).

The spelling of 221412201 in words is "two hundred twenty-one million, four hundred twelve thousand, two hundred one".