222420201 has 4 divisors (see below), whose sum is σ = 296560272. Its totient is φ = 148280132.

The previous prime is 222420199. The next prime is 222420217. The reversal of 222420201 is 102024222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222420201 - 2¹ = 222420199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222420241) 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, 37070031 + ... + 37070036.

It is an arithmetic number, because the mean of its divisors is an integer number (74140068).

Almost surely, 2^222420201 is an apocalyptic number.

It is an amenable number.

222420201 is a deficient number, since it is larger than the sum of its proper divisors (74140071).

222420201 is an equidigital number, since it uses as much as digits as its factorization.

222420201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74140070.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 222420201 is about 14913.7587817424. The cubic root of 222420201 is about 605.8866865435.

Adding to 222420201 its reverse (102024222), we get a palindrome (324444423).

The spelling of 222420201 in words is "two hundred twenty-two million, four hundred twenty thousand, two hundred one".