221314001 has 4 divisors (see below), whose sum is σ = 221522100. Its totient is φ = 221105904.

The previous prime is 221313977. The next prime is 221314019. The reversal of 221314001 is 100413122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100413122 = 2 ⋅50206561.

It can be written as a sum of positive squares in 2 ways, for example, as 185613376 + 35700625 = 13624^2 + 5975^2 .

It is a cyclic number.

It is not a de Polignac number, because 221314001 - 2¹⁰ = 221312977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221344001) 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, 102446 + ... + 104583.

It is an arithmetic number, because the mean of its divisors is an integer number (55380525).

Almost surely, 2^221314001 is an apocalyptic number.

It is an amenable number.

221314001 is a deficient number, since it is larger than the sum of its proper divisors (208099).

221314001 is a wasteful number, since it uses less digits than its factorization.

221314001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208098.

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

The square root of 221314001 is about 14876.6259951644. The cubic root of 221314001 is about 604.8805638146.

Adding to 221314001 its reverse (100413122), we get a palindrome (321727123).

The spelling of 221314001 in words is "two hundred twenty-one million, three hundred fourteen thousand, one".